When ducklings are exposed to music, they gain about six percent more

Question

When ducklings are exposed to music, they gain about six percent more weight for a given amount of feed than ducklings that are not exposed to music.

Which of the following, if true, most helps to explain the extra weight gains referred to above?

(A) Music played for ducklings must be kept at a low level because ducklings exposed to loud music gain less weight than ducklings exposed to no music.

(B) Ducklings exposed to classical music gained more weight than ducklings exposed to popular music.

(C) Ducklings are less active when they hear music so that less of the food they eat Is expended in movement, and more contributes directly to the ducklings' growth.

(D) When ducklings gain six percent more weight on a given amount of grain, the farmers' profits increase because they can spend less money on grain to feed the ducklings.

(E) When female ducklings were exposed to music, the percentage of fertile eggs that they laid as adults increased by over 27 percent in comparison to ducklings not exposed to music.

ID: 500387
01110

renjana · Answer

The Answer should be C . Here the question is asking for the reason for the Ducks weight gain . 
What answers C tells is that since Duck is less active when they hear music less energy from food is used up for movement and more is absorbed by the duck leading to weight gain .

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AkshdeepS · Answer

Which of the following, if true, most helps to explain the extra weight gains referred to above?

A) Music played for ducklings must be kept at a  low level because ducklings exposed to loud  music gain less weight than ducklings exposed to no music.

B) Ducklings exposed to  classical music gained  more weight than ducklings exposed to popular music.

C) Ducklings are less active when they hear music so that less of the food they eat Is expended in movement, and more contributes directly to the ducklings' growth.

D) When ducklings gain six percent more weight on a given amount of grain,  the farmers' profits increase  because they can spend less money on grain to feed the ducklings.

E) When  female ducklings were exposed to music,  the percentage of fertile eggs that they laid as adults increased by over 27 percent in comparison to ducklings not exposed to music.

meenakshimiyer · Answer

We have to state the logic behind the weight gain, when ducklings are exposed to music.
A. This is not the concern of the argument. Low or high music doesn’t give us the reasoning behind the weight gain by ducklings.
B. Again, ducklings’ response to the type of music is compared here while we have to find the reasoning behind the weight gain by ducklings when exposed to music.
C. This is an appropriate logic for the weight gain by ducklings when exposed to music. Hence, C is the answer.
D. This statement is irrelevant to the question asked.
E. The argument didn’t mention female or male ducklings in specific. So, this statement also doesn’t solve the purpose.

Rishab2409 · Answer

The question asks for an explanation of  why  music leads to more weight gain per unit of feed. (C) directly explains the mechanism: less energy spent on movement means more of the food's energy goes toward growth/weight gain instead of being burned off as activity.

The others don't explain the phenomenon:
 
 (A) is about a  limit  on the effect (loud music reverses it), not an explanation of the basic effect. 
 (B) compares two types of music but doesn't explain why music causes weight gain in general. 
 (D) is a  consequence  of the effect (economic benefit to farmers), not a cause. 
 (E) is about a completely different outcome (fertility), irrelevant to weight gain.

When ducklings are exposed to music, they gain about six percent more

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When ducklings are exposed to music, they gain about six percent more

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