A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
ROCK, UKFG, XGIC, ACLY, ?

The logic here is

R + 3 = U $$\longrightarrow\ $$U + 3 = X $$\longrightarrow\ $$X + 3 = A $$\longrightarrow\ $$A + 3 = D

O - 4 = K $$\longrightarrow\ $$ K - 4 = G $$\longrightarrow\ $$G - 4 = C $$\longrightarrow\ $$ C - 4 = Y

C + 3 = F $$\longrightarrow\ $$ F + 3 = I $$\longrightarrow\ $$ I + 3 = L $$\longrightarrow\ $$ L + 3 = O

K - 4 = G $$\longrightarrow\ $$ G - 4 = C $$\longrightarrow\ $$C - 4 = Y $$\longrightarrow\ $$ Y - 4 = U

$$\therefore\ $$The missing term in the series is DYOU

Hence, the correct answer is Option B