The correct answer is: b) Bodo.
Bodo is an Indo-Aryan language spoken by the Bodo people in Assam, India, and in the Chittagong Hill Tracts of Bangladesh. It is the second most spoken language in Assam after Assamese. Bodo is a member of the Bodo-Koch group of languages, which also includes Garo, Koch, and Rabha.
Bengali is an Indo-Aryan language spoken by the Bengali people in Bangladesh and India. It is the seventh most spoken language in the world, with over 265 million speakers. Bengali is a member of the Eastern Indo-Aryan branch of Indo-Aryan languages, and is closely related to Assamese, Oriya, and Maithili.
Karbi is an Indo-Aryan language spoken by the Karbi people in Assam, India. It is the third most spoken language in Assam after Assamese and Bodo. Karbi is a member of the Kuki-Chin-Mizo group of languages, which also includes Kuki, Chin, and Mizo.
Mising is an Indo-Aryan language spoken by the Mising people in Assam, India. It is the fourth most spoken language in Assam after Assamese, Bodo, and Karbi. Mising is a member of the Tani group of languages, which also includes Apatani, Nyishi, and Tagin.
In conclusion, the correct answer to the question “Besides Assamese, another major Indo-Aryan language spoken in Assam is:” is b) Bodo.