A technical support team of 6 agents is chosen from 9 senior-level agents and 5 junior-level agents. The team must have at least 2 seniors and at least 3 juniors. How many ways can this team be created?
Choose the correct answer.
A) 140
B) 320
C) 1015
D) 1020
E) 2204
Solution: We have two possibilities 2S 4J or 3S 3J   (9C2)(5C4)+(9C3)(5C3)=700   1020) 1020
<result>D</result>
A technical support team of 6 agents is chosen from 9 senior-level agents and 5 junior-level agents. The team must have at least 2 seniors and at least 3 juniors. How many ways can this team be created?