Answer : 3. "Sheikh Hasan Khan"
Explanation :

Kerala government employee Sheikh Hasan Khan has conquered Antarctica's highest peak 'Mount Vinson'. This is the fifth highest peak conquered by him. Mount Vinson is 4,892 meters (16,050 ft) above sea level. Apart from Mount Vinson, Khan has conquered four other high peaks, Mount Everest in Asia, Mount Denali in North America, Mount Kilimanjaro in Africa and Mount Elbrus in Europe.