Dr. Slater finds that given two faces, newborns will look at the one which ______.

A．They have the same ability to detect fine detail as adults.
B．They can understand the visual world right from the moment of birth.
C．Children learn to detect and recognize faces after they are born.
D．They have their own standards of attractiveness.

A．often made a commercial success
B．often won favorable comments from film critics
C．were often produced at a low cost
D．were favored mainly by sports fans