The correct answer is A. Austro-Asiatic and Dravidian.
The Austro-Asiatic languages are a language family spoken by about 120 million people in Southeast Asia, East Asia, and the Indian subcontinent. The Dravidian languages are a language family spoken by about 220 million people in South Asia.
The tribals of Jharkhand speak a variety of languages, including Austro-Asiatic languages such as Mundari, Santhali, and Ho, and Dravidian languages such as Kurukh and Malto.
Option B is incorrect because Tibeto-Burman languages are spoken in Tibet, Nepal, Bhutan, India, Myanmar, and China.
Option C is incorrect because Indo-non-Aryan languages are a group of languages spoken in India that are not Indo-Aryan languages.
Option D is incorrect because Bengali-Asiatic languages are a group of languages spoken in Bangladesh and India that are not Austro-Asiatic languages.