None of these
\textbf{Correct Answer:} (C) World AIDS Day
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The Correct Option isC
Solution and Explanation
Step 1: Match global observances to dates.
• World AIDS Day — 1 Dec (awareness, testing, prevention, anti-stigma).
• Literacy Day — 8 Sep. • Environment Day — 5 Jun.
Step 2: Conclude.
$$
\boxed{\text{Option C}}
$$