Directions: Identify the next letter in the given alphabetical sequence.

C, F, J, O, U, ?

The correct option is B.

To identify the next letter in the given alphabetical sequence, let us look at the positional value of each letter in the English alphabet:

C = 3
F = 6
J = 10
O = 15
U = 21

Now, let us find the pattern by taking the difference between consecutive terms:

F - C = 6 - 3 = +3
J - F = 10 - 6 = +4
O - J = 15 - 10 = +5
U - O = 21 - 15 = +6

The sequence of differences is increasing by 1 each time (+3, +4, +5, +6). Following this pattern, the next difference should be +7.

Adding 7 to the alphabetical position of U (21):

$21+7=28$

Since the English alphabet has 26 letters, we wrap around from Z (26) back to the beginning:

$28-26=2$

The 2nd letter of the alphabet is B.

Therefore, the next letter in the sequence is B.