A．Students studying in a three-year college.
B．Students whose fathers are farmers.
C．Students majoring in agriculture.
D．Students who have a demonstrated ability in math or science.

A．From his father.
B．From AT&T.
C．From his university.
D．From a CNN report.

A．It is the major ingredient for human evolution.
B．It is a medium that binds all human beings.
C．It is the most popular means for communication.
D．It is only used for the purpose of enriching knowledge.