smartmanav wrote:
Y C is correct ? Can someone explain with proper convincing points plz ?
As I mentioned in my prior post, this question is asking you to strengthen the conclusion that the discovery of leavend bread was causally related to the introduction of the non-toasted wheat. Your answer needs to make a definitive connection between those two events.
A - Makes no connection between non-toasted wheat and leaven.
B - We are trying to connect non-toasting and leavening...the baking process after the fact is not relevant.
C - This answer perfectly connects the non-toasting with the leavening. Before, when wheat was toasted, the gluten was destroyed, preventing the bread from leavining. With the new, non-toasted wheat, the gluten is present and the leavening process can take place.
D - This answer does not connect non-toasting with leaven.
E - Again, no connection made between non-toasting and leaven.
[Sorry for the delayed response here, we have a brand new baby at home and he's keeping me away from the computer

]
KW
Yeasts capable of leavening bread are widespread, and in the many centuries
during which the ancient Egyptians made only unleavened bread, such yeasts must
frequently have been mixed into bread doughs accidentally. The Egyptians,
however, did not discover leavened bread until about 3000 B. C. That discovery
roughly coincided with the introduction of a wheat variety that was preferable to
previous varieties because its edible kernel could be removed from the husk
without first toasting the grain.
Which of the following, if true, provides the strongest evidence that the two
developments were causally related?
A. Even after the ancient Egyptians discovered leavened bread and the techniques
for reliably producing it were well known, unleavened bread continued to be
widely consumed.
B. Only when the Egyptians stopped the practice grain were their stonelined
grain-toasting pits available for baking bread.
C. Heating a wheat kernel destroys its gluten, a protein that must be present in order
for yeast to leaven bread dough.
D. The new variety of wheat, which had a more delicate flavor because it was not
toasted, was reserved for the consumption of high officials when it first began
to be grown.
E. Because the husk of the new variety of wheat was more easily removed, flour
Made from it required less effort to produce.
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Kyle Widdison | Manhattan GMAT Instructor | Utah
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