Answer:
Option B
Explanation:
1st letter : $a+6 \rightarrow g, g+6 \rightarrow m, m+6\rightarrow s, s+6\rightarrow y$
2nd letter : $j+6 \rightarrow p, p+6 \rightarrow v, v+6\rightarrow b, b+6\rightarrow h$
3rd letter : $ s+6 \rightarrow y, y+6 \rightarrow e, e+6\rightarrow k, k+6\rightarrow q$
Hence the answer is (b).