Select the triad that follows the same pattern as the one followed by the two triads given below. Both triads follow the same pattern.

LH-NJ-PS

NJ-PL-RU

Logic: first pair has difference of 4, second pair has difference of 4 and third pair has difference of 3.

As,

LH-NJ-PS

L-4=H, N-4=J, P+3=S

and

NJ-PL-RU

N-4=J, P-4=L, R+3=U

Now,

Check option (a), PL-RN-TW

P-4=L, R-4=N, T+3=W

Check option (b), OL-RN-TX

O-3=L, R-4=N, T+4=X

So, its not correct.

Check option (c), PL-RN-TX

P-4=L, R-4=N, T+4=X

​ So, its not correct.

Check option (d), ​OL-RM-TX

O-3=L, R-5=M, T+4=X

So, its not correct.