What is the 5th letter in the English alphabet?

B. E

In the series A, B, C, D, E, F, G, how many letters are vowels?

B. 3

How many letters are there between 'M' and 'R' in the English alphabet?

A. 4

In the series A, B, C, D, E, F, G, how many letters come before the letter 'D'?

B. 3

In the series A, B, C, D, E, F, G, H, I, J, how many times does the letter 'E' occur?

A. 1