单选题 To fill a number of vacancies, an employer must hire 3 programmers from among 6 applicants, and 2 managers from among 4 applicants.
What is the total number of ways in which she can make her selection?
(A) 1,490 (B) 132 (C) 120
(D) 6O (E) 23

【正确答案】 C
【答案解析】