What should come in place of the question mark (?) in the following letter series? AC, EG, IK, MO, ?
A
QR
B
PS
C
PR
D
QS
Correct Option:
D
Explanation
The series is AC, EG, IK, MO, QS. In the first positions, the letters advance A → E → I → M → Q, each time by four letters. The second positions similarly move C → G → K → O → S. Therefore, QS comes next.
