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Correct Answer: Option D — Beyond-visual-range air-to-air missile. Beyond-visual-range air-to-air missile is the accurate answer because Astra is an indigenous beyond-visual-range air-to-air missile intended for fighter aircraft. This identifying fact establishes its correct connection with air-combat missile and distinguishes it from the other defence-related choices. Why the other options are incorrect: Option A — Multirole air-superiority fighter: This is actually associated with combat aircraft; specifically, the Su-30MKI is a twin-engine fighter used for air-superiority and multiple combat roles. Option B — President of India: This is actually associated with constitutional authority; specifically, the Constitution places the supreme command of the Defence Forces of the Union in the President. Option C — 1958: This is actually associated with organisation history; specifically, DRDO was formed in 1958 by combining existing defence science and technical organisations. Exam Takeaway: Link Beyond-visual-range air-to-air missile with its exact air-combat missile association for fast Indian Defence GK revision.
