Based on the information and chart, which statement is the best interpretation of the relationship between heart rate and body size?

Heart rate is affected by the body size of an animal. The longer the path for blood to travel through the body, the longer the time between heartbeats. The graph below illustrates the heart rates of selected animals, the largest of which is the elephant, and the smallest of which is the mouse.

Based on the information and chart, which statement is the best interpretation of the relationship between heart rate and body size?
A . There is no relationship between heart rate and body size.
B . The larger the animal, the faster the heart rate.
C . The longer the pathway for the blood to flow through the body, the faster the heart beats.
D . Humans always have the slowest heart rate.
E . The smaller the animal, the faster the heart rate.

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Answer: E