Correct Answer: UVXW

Solution : Let's check the options –
First option: GJHI; G + 3 = J; J – 2 = H; H + 1 = I
Second option: MPNO; M + 3 = P; P – 2 = N; N + 1 = O
Third option: RUST; R + 3 = U; U – 2 = S; S + 1 = T
Fourth option: UVXW; U + 1 = V; V + 2 = X; X – 1 = W

Only the fourth option is different from the others. Hence, the fourth option is correct.