Which letter-cluster will replace the question mark (?) to complete the given series?
WGDE, ZEGC, ?, FAMY, IYPW

Given: WGDE, ZEGC, ?, FAMY, IYPW

Logic: 1st letter +3, 2nd letter −2, 3rd letter +3, 4th letter −2.

First letters:
W + 3 = Z
Z + 3 = C
C + 3 = F
F + 3 = I

Second letters:
G − 2 = E
E − 2 = C
C − 2 = A
A − 2 = Y

Third letters:
D + 3 = G
G + 3 = J
J + 3 = M
M + 3 = P

Fourth letters:
E − 2 = C
C − 2 = A
A − 2 = Y
Y − 2 = W

The missing term is CCJA.

Thus, correct option is (c).