The correct answer is: a) Kamarupa and Pragjyotisha.
Kamarupa and Pragjyotisha were two ancient kingdoms in Northeast India. Kamarupa was located in the Brahmaputra Valley, while Pragjyotisha was located in the Surma Valley. Both kingdoms were ruled by Hindu kings.
Kamarupa was founded in the 3rd century CE by the Varman dynasty. The Varmans ruled Kamarupa for over 400 years. During their rule, Kamarupa reached its peak of power and prosperity. The Varmans were patrons of art, literature, and religion.
Pragjyotisha was founded in the 7th century CE by the Pala dynasty. The Palas ruled Pragjyotisha for over 200 years. During their rule, Pragjyotisha was a major center of Buddhist learning and culture.
Both Kamarupa and Pragjyotisha were eventually conquered by the Muslim rulers of Bengal in the 13th century CE. However, their legacy continues to this day. The people of Northeast India still identify with the history and culture of these ancient kingdoms.
The other options are incorrect because they do not refer to kingdoms in Northeast India. Chola and Vijayanagara were kingdoms in South India, Magadha and Maurya were kingdoms in North India, and Kalinga and Satavahana were kingdoms in Central India.