Which of the following would have the same relation with the second term, as the third has with first?

KO : PL :: GA : _ _

Looking at the position of the characters in the alphabetical sequence, we see that K is 11th from the start and P is 11 from the end. 

Simialrly, O is 15th from the start, and L is 15th from the end. 

The sum of their positions adds up to 27 each. 

We want to find a parallel to GA. 

A is 1st from the start, so the parallel should be Z, 1st from the end. 

G is 7th from the start, so the parallel should be T, 7th from the end. 

Therefore, the fourth term should be TZ.

Hence, Option A is the correct answer.