Decide whether the exercise involves permutations, combinations, or neither, and then solve the problem. In a club with 11 juniors and 16 seniors, how many 7-member committees can be chosen that have (a) all juniors? (b) 4 juniors and 3 seniors? (c) at least 6 seniors? Does the problem involve permutations or combinations? Neither permutations nor combinations O Permutations O Combinations (a) There can be all-junior committees. (b) There can be |7-member committees with 4 juniors and 3 seniors. (c) There can be 7-member committees with at least 6 seniors