Higher education in the United States consists of（）types of institutions.

A.four　
B.three
C.five　
D.None of the above

A.the hiring of teachers and staff
B.the designing of a suitable curriculum
C.the compiling and approving of budget
D.All of the above

A.the federal government
B.the state and board of trustees in some states
C.local school district
D.board of trustees