1) AZ, GT, MN, ?, YB A) JH B) SH C) SK D) TS Answer: Option BExplanation:1st letter : $A+6 \rightarrow G, G+6 \rightarrow M, M+6\rightarrow S, S+6\rightarrow Y$ 2nd letter : $Z-6 \rightarrow T, T-6 \rightarrow N, N-6 \rightarrow H, H-6 \rightarrow B$ Hence the answer is (b).