The correct answer is: a) Gangtok.
Sikkim was a princely state in India during the British Raj. The British Political Officer resided in Gangtok, the capital of Sikkim. The Political Officer was the British representative in Sikkim and was responsible for maintaining relations between the British government and the Sikkimese government. The Political Officer also had a role in the administration of Sikkim.
Darjeeling is a town in West Bengal, India. It is located in the foothills of the Himalayas and is a popular tourist destination. Darjeeling was once the summer capital of British India.
Kalimpong is a town in West Bengal, India. It is located in the foothills of the Himalayas and is a popular tourist destination. Kalimpong was once a trading center between India and Tibet.
Siliguri is a city in West Bengal, India. It is located on the border between India and Nepal. Siliguri is a major transportation hub and is the gateway to the Northeast Indian states.