What should come in place of the '?' in the given series, based on the English alphabetical order?
PJL OIK NHJ MGI ?

The correct option is LFH.

To find the missing term in the series PJL, OIK, NHJ, MGI, ?, let us analyze the pattern of each letter position (first, second, and third) in the consecutive terms.

Let us look at the first letters of each term:
P → O → N → M → ?
In the English alphabetical order, these letters are moving backward by 1 position:
P (16th letter) - 1 = O (15th letter)
O (15th letter) - 1 = N (14th letter)
N (14th letter) - 1 = M (13th letter)
M (13th letter) - 1 = L (12th letter)
So, the first letter of the missing term is L.

Let us look at the second letters of each term:
J → I → H → G → ?
These letters are also moving backward by 1 position in alphabetical order:
J (10th letter) - 1 = I (9th letter)
I (9th letter) - 1 = H (8th letter)
H (8th letter) - 1 = G (7th letter)
G (7th letter) - 1 = F (6th letter)
So, the second letter of the missing term is F.

Let us look at the third letters of each term:
L → K → J → I → ?
These letters also follow the same pattern of moving backward by 1 position:
L (12th letter) - 1 = K (11th letter)
K (11th letter) - 1 = J (10th letter)
J (10th letter) - 1 = I (9th letter)
I (9th letter) - 1 = H (8th letter)
So, the third letter of the missing term is H.

Combining all three letters, we get LFH.