12. The smallest positive integer greater than 1 that leaves a remainder of 1 when divided by $4, 5, 6$ is between ( ).
(A) 2 to 19
(B) 20 to 39
(C) 40 to 59
(D) 60 to 79
(E) 80 to 124
12. D.
$$
(4,5,6)+1=61 \text {. }
$$