Questions 11 to 18 are based on the conversation you have just heard

A．People between 25 and 30 don’t want to talk about the consequences of what they do.
B．People between 25 and 30 often fail to do anything because of lack of experience.
C．People who are a bit older are more mature and are more likely to succeed.
D．People who are a bit older tend to hesitate before deciding what to do.

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.