Why is the animal "pigeon" mentioned in the passage？A．To give an example that both human b

Why is the animal "pigeon" mentioned in the passage？

A．To give an example that both human beings and animals can recognize faces.

B．To tell how a skilled writer could describe all the features of different people.

C．To indicate how pigeons and people look different.

D．To show how faces are like fingers.

请帮忙给出正确答案和分析，谢谢！