Select the option that is related to the third letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster.
SPL : HRO :: KFQ : ?

Let's determine the relationship between the first two clusters, SPL and HRO, by analyzing their alphabetical positional values:
S (19) → its opposite letter is H (8).

P (16) + 2 = R (18).

L (12) → its opposite letter is O (15).

So the pattern is:

First letter: Replaced by its opposite letter.

Second letter: Shifted forward by +2.

Third letter: Replaced by its opposite letter.

Let's apply this exact pattern to KFQ:

K → opposite letter is P.

F (6) + 2 = 8 → H.

Q (17) → opposite letter is J? Let's check the options: we have PHT, PHS.
Let's check the third letter shift again: L (12) to O (15) is +3.
Let's see if the pattern is a direct shift instead of opposites:

S (19) - 11 = H (8)

P (16) + 2 = R (18)

L (12) + 3 = O (15)

Let's test this direct shift pattern (−11,+2,+3) on KFQ:

K (11) - 11 = 0 → Z (No option starts with Z)

Let's look at opposite letters again:

S ↔ H (Opposite)

P ↔ K? No.
What if it is a cross pattern?

S (19) - 4 = O (15)

L (12) - 4 = H (8)

P (16) + 2 = R (18)
Yes! It's a cross pattern:

1st letter S (-4) → becomes the 3rd letter O.

3rd letter L (-4) → becomes the 1st letter H.

2nd letter P (+2) → remains the 2nd letter R.

Let's apply this cross pattern to KFQ:

1st letter K (11) - 4 = 7 → G (goes to 3rd position).

3rd letter Q (17) - 4 = 13 → M (goes to 1st position)? No option matches.

Let's re-verify Option A: PHT.
Let's see how KFQ can become PHT:

K → opposite letter is P

F (+2) → H

Q (+3) → T (17 + 3 = 20, which is T)
Wow! The pattern is:

1st letter: Opposite letter (K → P)

2nd letter: +2 (F → H)

3rd letter: +3 (Q → T)

This gives PHT, which matches Option A perfectly.