Argument:(1) The frequency of using Microwave ovens would increase IF users were
able to prepare a
wider range of meals(2) Wider range
DOES NOT MEAN faster preparation time
(3) Wider range
DOES MEAN more gradual range of power level
In other words, if a microwave oven were to have a variety of power level options, the frequency of using Microwave ovens would increase
Question stem: Find the conclusion
Answer choice analysis:(A)
More people will prepare family meals using their microwave ovens if the ovens had a gradual range of power levels.
Incorrect. Increase in frequency of using microwave oven
DOES NOT MEAN increase in number of people using the microwave oven.
E.g. Ron uses the microwave oven twice a week given the
low range of power options. Post the increase in the variety of power level options, Ron started using the microwave oven EVERYDAY. Thus, we see that the frequency of using the microwave oven by
one person/customer has increased and not the number of users/customers all together!
(B) Being able to more quickly prepare family meals
is not the most important issue for people using microwave ovens.
Incorrect. The argument has just mentioned
what qualifies as "wider range". Just because preparation time does not fit the definition does not mean it is not important. Moreover, we cannot comment whether it is the
most important issue or not
Word of advice: Keep the idea of the argument in mind. The entire argument revolves around
frequency of using microwave oven and
what helps increase this frequency. So any conclusion that does not cover this idea CANNOT be the conclusion of the argument
(C) A microwave oven that has a more gradual range of power levels will be used more frequently in the preparation of family meals.
Correct. As mentioned in (B) The conclusion must cover the main idea and option (C) uses the right keywords to convey the idea.
Indeed, a microwave oven that has a more gradual range of power level will increase the frequency of using the microwave oven. See option (A) example.
(D) The frequency with which people use microwave ovens to prepare family meals has increased with
improvements in the design of the ovens. Incorrect. Only those designs that help increase the range of power levels will help increase the frequency. Option (D) just talks about designs in general.
Note: The argument has mentioned that designs that helps increase preparation time will not increase the frequency. BUT it does mention that designs that increase the range of power levels will increase the frequency. THUS, we are clearly given that
only specific designs will help increase the frequency(E) Microwave ovens are currently used to prepare
a narrower range of family meals
than are conventional ovens. Incorrect. Yes we can infer that since the current microwave ovens do not have a range of power levels, it cannot be used for a range of meals. BUT the argument does not compare this range with any
conventional microwave oven. This comparison is nowhere stated in the argument.
E.g Lets say microwave oven A provides temperature levels from 10 - 50 degrees. Accordingly the "variety of meals" that I can prepare will be far less compared to a microwave oven with levels from 10 - 180 degrees. So yes, the mentioned microwave oven does have a narrow range. But comparing this range with the range of a "conventional one" is incorrect.
Besides, as mentioned in (B) and (C) this option does not cover the main idea/theme of the argument.
Correct choice:
(C)