1. If four consecutive natural numbers are all composite, then the smallest possible value of the sum of these four numbers is ( ).
(A) 100
(B) 101
(C) 102
(D) 103
1. The sum of any four consecutive natural numbers is always divisible by 4 with a remainder of 2, so only 102 satisfies the condition. The condition "all are composite numbers" can be ignored.
C