Which of the following is a nuclear-powered submarine?

Correct option is D

Correct Answer: D). INS Arihant

Explanation:
INS Arihant is India's first indigenously developed nuclear-powered ballistic missile submarine (SSBN). It was launched in 2009 and commissioned in 2016. It is a part of India's nuclear triad, allowing the country to launch nuclear weapons from land, air, and sea.

Information Booster:
INS Arihant is powered by a nuclear reactor and can stay submerged for extended periods, unlike diesel-electric submarines.
It is equipped with K-15 (Sagarika) ballistic missiles, which have a range of around 750 km.
It was developed under the Advanced Technology Vessel (ATV) project and is the first of the Arihant-class submarines.

Additional Information:
A. INS Sindhuvir – it is a diesel-electric submarine of the Sindhughosh class, originally from Russia.
B. INS Shalki –  it is a diesel-electric submarine, the first submarine built in India at Mazagon Dock.
C. INS Kalvari –  it is a Scorpène-class diesel-electric attack submarine, commissioned in 2017.