In the sequence 5, 10, 15, 20, 25, 30, how many numbers are multiples of 10?

C. 4

In the sequence 1, 4, 7, 10, 13, 16, how many numbers are less than 10?

B. 3

In the sequence 2, 4, 8, 16, 32, how many numbers are powers of 2?

B. 4

In the sequence 12, 15, 18, 21, 24, how many numbers are divisible by 3?

D. 5

If A is the sister of B, and B is the mother of C, what is A's relation to C?

A. AUNT