Answer:
The correct answer would be C. Humans are more closely related to chimpanzees than carp.
According to information provided, the cytochrome c of humans is identical to that of chimpanzee. Thus, we can conclude that chimpanzees are close relative of humans.
In contrast, the difference between the cytochrome c of humans and carp is 17%. Thus, the humans and carp are not as closely related as humans and chimpanzees are.
The phylogenetic relation of humans and garden snail would be the least as compared to the relation between humans and any other organism given in the chart.