Step 1: Understanding the Question.
We need to pair four schedules, H, G, P and F2, with four descriptions covering prescription drugs, RMP-supervised drugs, drug shelf life and surgical dressing standards.
Step 2: Key Approach.
Rather than checking all four pairs in every option, pick the schedule with the most distinctive, easy to recall scope first and use it to knock out options in one move.
Step 3: Detailed Explanation.
Schedule F2 is the odd one out among these four, it is the only schedule tied to a physical product standard (surgical dressing) rather than a drug-sale rule, so it should match description IV (standards for surgical dressing). Checking the options, only the combination P-III, Q-II, R-I, S-IV places S against IV.
As a second check, Schedule P is the schedule that governs the life period of drugs, meaning shelf life and expiry dating, which is description I. In the surviving option, R (Schedule P) is indeed matched with I, confirming the pairing is consistent.
With S-IV and R-I both confirmed, the remaining two pairs, Schedule H with the prescription drug list (III) and Schedule G with drugs used under RMP (II), fall into place by elimination since no other description is left unmatched.
Step 4: Final Answer.
The correct match is P-III, Q-II, R-I, S-IV.