Problem Solving (PS) | Re: Six students in a social studies class will be divided into 3 pairs to

Six students in a social studies class will be divided into 3 pairs to give presentations about the continents Africa, Asia and South America. Each pair will be assigned a different continent. How many complete assignments of the 6 students to the 3 continents are possible ?

(A) 15

(B) 20

(C) 36

(D) 64

(E) 90