In the sequence A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, how many times does the letter 'A' appear?

A. 1

What comes next in the series: Z, Y, X, W, ?

A. V

In the pattern 3, 6, 12, 24, what is the next number?

C. 48

If the sequence is A, C, E, G, what is the next letter?

B. H