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

A. V

In a sequence where each letter is followed by the next letter in the alphabet, what comes after 'G'?

A. H

In a series where each letter is represented by its position in the alphabet (A=1, B=2, etc.), what is the sum of the positions of the letters C, E, and G?

B. 15

Identify the next term in the sequence: 1, 1, 2, 3, 5, 8, ?

D. 13

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

B. H