Concept:The sentence parts must be arranged logically so that the condition, action, and recipient follow a natural order.
Explanation:Start with (R) "if you have any complaint to" — this sets the condition.
Next, (Q) "be made in response to this notice" explains how the complaint should be submitted.
Then, (P) "please mark the same" requests that the complaint be clearly indicated.
Finally, (S) "to the concerned authority" specifies the recipient of the complaint.
Hence, the correct order is R Q P S.
Answer:Option D (RQPS)