S1. How are the mass media said to influence our ability to make decisions__________

A．It’s now taught with the aid of computers.
B．It isn’t considered as important today as it was in the past.
C．Children today learn it earlier than those did in the past.
D．A lot of time is spent teaching it.

A．How animals react to frightening situations.
B．Why mice are particularly fearful animals.
C．Whether fearfulness is a genetic trait.
D．Why certain animals are feared by humans.