Step 1: Understanding the Concept.
We need a reason that makes rising inflation look temporary or non-threatening, since that is what would keep stock prices steady.
Step 2: Check option A.
A promised future RBI action does not by itself explain calm in the present, since the action has not happened yet.
Step 3: Check option B.
Fear of continuing inflation is normally something that would unsettle markets, not steady them, so this option contradicts itself.
Step 4: Check option C.
A warning that inflation will continue should make investors nervous, not calm, so it fails to explain the steady prices.
Step 5: Check option D.
A drought is a one-time, temporary weather event. If most of the price rise traces back to it, investors have good reason to expect prices to normalise once the drought ends, explaining why they are not alarmed.
Step 6: Final Answer.
Option D gives the clearest reason for the market's calm reaction, so it is correct.