听一段材料，回答下面几个小题。
What percent of the fouryear schools began as public agricultural colleges in America?
A.About 1/4.
B.About 1/24.
C.About 1/6.
When was the idea of the land grant college developed?
A.In 1826.
B.More than 100 years ago.
C.About 200 years ago.
What do we know about the international students this year at the College of Agricultural Sciences?
A.There are 5 graduate students altogether.
B.Most of them are from Africa,Asia and Europe.
C.There are 205 international students.