Option 1: Stealth worship - This option is incorrect. Admiral Gorshkov is not a stealth worship. Stealth warships are designed to be less detectable by radar and other detection systems.
Option 2: Nuclear powered submarine - This option is incorrect. Admiral Gorshkov is not a nuclear powered submarine. Nuclear powered submarines are armed with nuclear weapons and are propelled by nuclear reactors.
Option 3: Aircraft carrier - This is the correct answer. Admiral Gorshkov is an aircraft carrier. It was originally built for the Soviet Navy and was later sold to India. The aircraft carrier, which was renamed INS Vikramaditya, has a displacement of around 45,000 tons and can carry up to 30 fighter aircraft, including MiG-29K jets.
Option 4: Marine oil drilling platform - This option is incorrect. Admiral Gorshkov is not a marine oil drilling platform. Marine oil drilling platforms are structures used for drilling and extracting oil and gas from the ocean floor.
In conclusion, the correct answer is option 3 - Admiral Gorshkov is an aircraft carrier.