2. Paul owes Paula 35 cents, and his pocket contains only 5 cent, 10 cent, and 25 cent coins (in sufficient quantity), which he can use to pay Paula back. The difference between the maximum and minimum number of coins used in the payment is ( ).
(A) 1
(B) 2
(C) 3
(D) 4
(E) 5
2. E.

The maximum number of coins in the change is seven, all being 5 cents; the minimum is 2 coins, one 10 cents and one 25 cents. Therefore, the difference between the maximum and minimum values is $7-2=5$.