Official Answer Key & Detailed Solution
Ready to check the official UPSC Answer Key?
Click any option above to test yourself under exam conditions, or reveal the explanation directly.
Correct Answer: Option (A) — Jupiter
Concept & Option Breakdown
Standard Reference VerifiedAs of 2009, Jupiter held the record for the highest number of known moons (63). Note that with recent astronomical discoveries, Saturn currently holds the highest number of confirmed moons (146+).
Practice Full-Length & Sectional Prelims Mocks on this Interface
50 simulated tests in the APT Prelims Test Series (₹1,493) or 1-on-1 Mentorship with Avinash Sir.