The correct answer is: a) Assam and West Bengal.
Meghalaya’s primary trading partners within India are Assam and West Bengal. In 2019-20, Meghalaya’s exports to Assam were worth Rs. 1,128.92 crore, while its imports from Assam were worth Rs. 1,055.36 crore. Meghalaya’s exports to West Bengal were worth Rs. 1,032.63 crore, while its imports from West Bengal were worth Rs. 997.42 crore.
Assam and West Bengal are Meghalaya’s primary trading partners because they are the two states that share a border with Meghalaya. This makes it easier and cheaper for Meghalaya to trade with these states. Additionally, Assam and West Bengal are both major economic centers in India, which means that they have a large market for Meghalaya’s products.
The other options are incorrect because they are not states that share a border with Meghalaya. Maharashtra and Gujarat are located in western India, while Tamil Nadu and Kerala are located in southern India. Punjab and Haryana are located in northern India.