RX 2 is related to TT –7 in a certain way. In the same way, MQ 9 is related to OM 0. To which of the following is NV 15 related, following the same logic?

RX 2 → TT –7
MQ 9 → OM 0
Find: NV 15 → ?

Logic: 1st + 2, 2nd - 4, Number -9

RX 2 → TT –7

R +2 → T
X –4 → T

2 –9 → –7

MQ 9 → OM 0

M +2 → O
Q –4 → M

9 –9 → 0

 Similarly, NV 15 → ?

N +2 → P
V –4 → R

15 – 9 = 6

Thus, correct option is (c).