Given what you have learned about metabolic rates in endotherms and ectotherms, which of the following can you infer?

A)Ectotherms can be active for much longer periods than endotherms.
B)Endotherms have a higher density of mitochondria than ectotherms.
C)Ectotherms have an overall higher metabolic rate than endotherms.
D)An endotherm requires less food than an ectotherm of the same size.