5C1 + 5C2+ 5C3+5C4+5C5 = 31.is the reasoning for what question and answer pair?
Q: John has 5 flavors of chocolate in him shop. How many options are there for Jones to pick a one-flavor, two-flavor, three-flavor, four-flavor or five-flavor order?
Options:
(A) 22
(B) 31
(C) 43
(D) 37
(E) 38
A: (B)