KMOQ is related to SUWY in a certain way based on the English alphabetical order. In the same way, EGIK is related to MOQS. To which of the given options is YACE related, following the same logic.

KMOQ → SUWY

EGIK → MOQS

YACE → ? 

Logic: Each letter is increasing by + 8 in alphabetical order.

K + 8 = S, M + 8 = U, O + 8 = W, Q + 8 = Y

EGIK → MOQS
E + 8 = M, G + 8 = O, I + 8 = Q, K + 8 = S

YACE → ? 
Y + 8 = G, A + 8 = I, C + 8 = K, E + 8 = M

So, YACE → GIKM

Thus, the correct option is (a) GIKM.