Which letter-cluster will replace the question mark (?) to complete the given series?
TBNF, CJUL, LRBR, UZIX, ?
Explanation:
T + 9 = C + 9 = L + 9 = U + 9 = D B + 8 = J + 8 = R + 8 = Z + 8 = H N + 7 = U + 7 = B + 7 = I + 7 = P F + 6 = L + 6 = R + 6 = X + 6 = D
Hence, option (d).