What should come in place of the '?' in the given series, based on the English alphabetical order?
DIB FKD HMF JOH ?

The correct option is LQJ.

To find the missing term in the series: DIB, FKD, HMF, JOH, ?, let us analyze the pattern of each letter position (first, second, and third) in the terms sequentially.

First Letter Pattern:
The first letters of the consecutive terms are D, F, H, J.
Let's look at their positions in the English alphabet:
D = 4
F = 6 (4 + 2)
H = 8 (6 + 2)
J = 10 (8 + 2)
The pattern is to add 2 to the position of the previous letter. Therefore, the next first letter position will be:
10 + 2 = 12, which corresponds to the letter L.

Second Letter Pattern:
The second letters of the consecutive terms are I, K, M, O.
Let's look at their positions in the English alphabet:
I = 9
K = 11 (9 + 2)
M = 13 (11 + 2)
O = 15 (13 + 2)
The pattern is to add 2 to the position of the previous letter. Therefore, the next second letter position will be:
15 + 2 = 17, which corresponds to the letter Q.

Third Letter Pattern:
The third letters of the consecutive terms are B, D, F, H.
Let's look at their positions in the English alphabet:
B = 2
D = 4 (2 + 2)
F = 6 (4 + 2)
H = 8 (6 + 2)
The pattern is to add 2 to the position of the previous letter. Therefore, the next third letter position will be:
8 + 2 = 10, which corresponds to the letter J.

Combining all three letters, we get the term LQJ.