Understanding the passage:Paragraph 1:The first para puts forth some questions and states that an anthropologist is working to answer them, essentially setting an expectation about the answers of those questions.
Paragraph 2:The second para goes on the explain, in detail, the anthropologist's experiments and his findings. Then it goes on to say that though the findings may point to a certain conclusion, the anthropologist did not quite conclude just so and also states the anthropologist's "controversial"(as per author) claim/conclusion.
Paragraph 3:The last para provides information about how the broader anthropologist community reacted to his claims and also why "most anthropologists" disagree, with reasoning, with his claim.
Question 1: Answer - E1. According to the passage, what do most anthropologists believe is the reason why arrowheads appear in such large numbers around prehistoric sites?
Most Anthropologists believe arrowheads are valuable items easily lost during a hunt(last 4 lines)
A. Arrowheads were easy to manufacture and were created in abundance by primitive humans.No information provided indicates whether arrowheads were "easy"(or hard) to manufacture.
B. Several arrowheads could be created from the same piece of shale or slate.No information on the source/raw materials used to create Arrowheads is provided.
C. Arrowhead manufacturing was undertaken by the entire tribe in times of need.Again, nothing in the passage indicates that the entire tribe manufactured arrowheads. The preponderance of arrowheads alone doesn't warrant such an assumption.
D. Arrowheads were used for a wide variety of purposes in prehistoric communities.While, it may be true that arrowheads were used for a wide variety of purposes, it's not what "most anthropologists" believe to be the reason why arrowheads appear in such large numbers.
E. Arrowheads were easily lost making reserve supplies a necessity.Most Anthropologists believe arrowheads are valuable items easily lost during a hunt(last 4 lines)
Question 2: Answer - C2. Which of the following, if true, would strengthen Chen's claim that arrowheads were manufactured for amusement?
A. Large stores of arrowheads have been discovered along with other tools for hunting."Along with other tools for hunting" suggests that those arrowheads might've been intended for hunting, too. Thus weakens Chen's argument.
B. No other discarded prehistoric relics have been found that did not serve some practical purpose.This suggests that anything that did not serve some practical purpose(and discarded unused) was most probably never made at all. It indicates that every discarded prehistoric relic had some practical purpose. Thus weakens Chen's argument.
C. Large numbers of arrowheads have been discovered that were fashioned out of weak, easily broken materials.Objections by most anthropologists to Chen's argument hold that arrowheads("arrowheads, valuable items easily lost during a hunt" - last 4 lines) were most probably used for hunting. This option, however, says that a lot of arrowheads were fashioned out of weak, easily broken materials which are not suitable for hunting. Also, such materials may not be suitable for even the household works that Chen experimented with. Thus it weakens the objections to Chen's claims and strengthens his argument.
D. Many other influential anthropologists have begun to support Chen's controversial claims.This might support Chen's claim but doesn't bolster the assumption better than C does.
E. A flint stone covered with primitive etchings has been discovered that is believed to have been used in the creation of arrowheads.Etched flint stone doesn't necessarily indicate that the arrowheads that were made using it were made for fun. In fact, it's quite common that artisans etch some indication in their tools to claim ownership. It doesn't help strengthen Chen's claim.
Question 3: Answer - A3. According to the passage, Chen fashioned his own arrowheads in order to
A. recreate and analyze the markings found on arrowheads collected from prehistoric settlementsCorrect. Second & third sentences in 2nd para indicate the intent of Chen to recreate the markings found on prehistoric arrowheads in order to identify the sort of works that could have, possibly, been done with arrowheads during that time.
B. understand the laborious process involved in the construction of prehistoric arrowheadsAs discussed, the intent was to recreate and identify the sort of works possibly happened, not to see how laborious(or easy) the manufacturing was.
C. demonstrate his theory that arrowheads were used for entertainment among primitive hunters and farmersHis theory, before the experiment, was more towards a multipurpose arrowhead that could've been used for household works. The relation between his intent behind fashioning of own arrowheads and his theory of "arrowheads for fun"(claimed post the experiment) was nowhere indicated.
D. illustrate the ease with which arrowheads can be fashioned using elementary implementsAgain, the intent was to recreate and identify the sort of works possibly happened, not to see how laborious(or easy) the manufacturing was.
E. establish provisional evidence to contest the research of his colleaguesNo indication that suggests that Chen was contesting the research of his colleagues was provided.
Question 4: Answer - D4. According to Chen, our ancestors did NOT make arrowheads in order to
A. perform common household choresThis can be concluded from Chen's conclusion of his experiment wherein the author says "Chen has not concluded, however, that arrowheads were
simply household implements". Chen claims that the arrowheads are not
just household tools but more than that. Anyway, he agrees those were used to perform household chores.
B. amuse themselves and their friendsApparently true. Last two sentences of para 2 clearly state this as Chen's conclusion from the experiment.
C. scrape animal skinsChen's experiment, as explained in para 2, states this as one of the household chores as part of the experiment.
A. trade amongst neighboring tribesThis is mentioned or indicated nowhere in the passage.
B. demonstrate their skill and craftsmanshipLast two sentences of para 2 exactly note this in stating "or even as a demonstration of skill".