The ‘Look East Policy’ (now ‘Act East Policy’) of India aims to boost trade and connectivity between Arunachal Pradesh and:

China
Bhutan
Southeast Asia
Nepal

The correct answer is: c) Southeast Asia.

The ‘Look East Policy’ (now ‘Act East Policy’) of India aims to boost trade and connectivity between India and Southeast Asia. The policy was launched in 1992 with the aim of enhancing India’s economic and strategic ties with Southeast Asia. The policy has been successful in promoting trade and investment between India and Southeast Asia. In 2014, India and Southeast Asia signed a free trade agreement, which has further boosted trade and investment between the two regions. The ‘Act East Policy’ is also aimed at enhancing India’s security and strategic ties with Southeast Asia. India has been working with Southeast Asian countries to counter the threat of terrorism and to promote peace and stability in the region.

The other options are incorrect because they are not the focus of the ‘Look East Policy’. China is a major trading partner of India, but the ‘Look East Policy’ is not specifically aimed at boosting trade and connectivity between India and China. Bhutan is a small landlocked country in the Himalayas, and it is not a major trading partner of India. Nepal is a landlocked country in the Himalayas, and it is not a major trading partner of India.