Chimpanzees, chickens, cows, and human beings all share a gene for an insulin hormone. What does this suggest?

Question

Responses

This suggests that two of these species share a common ancestor.
This suggests that two of these species share a common ancestor.

This suggests that none of these species share a common ancestor.
This suggests that none of these species share a common ancestor.

This suggests that three of these species share a common ancestor.
This suggests that three of these species share a common ancestor.

This suggests that all of these species share a common ancestor.

Answer 1

This suggests that all of these species share a common ancestor.

The presence of a shared gene for insulin among chimpanzees, chickens, cows, and human beings indicates that they have a common evolutionary origin, as similar genetic traits are typically inherited from a common ancestor.