The correct answer is Maithili. Maithili is an Indo-Aryan language spoken by about 35 million people in India and Nepal. It is the official language of the Indian state of Bihar and is also spoken in the neighboring states of Jharkhand and Uttar Pradesh. Maithili is written in the Devanagari script.
Bhojpuri is another Indo-Aryan language spoken by about 40 million people in India and Nepal. It is the official language of the Indian state of Jharkhand and is also spoken in the neighboring states of Bihar, Uttar Pradesh, and Madhya Pradesh. Bhojpuri is written in the Devanagari script.
Magahi is an Indo-Aryan language spoken by about 10 million people in India. It is spoken in the Indian state of Bihar and is also spoken in the neighboring state of Jharkhand. Magahi is written in the Devanagari script.
Angika is an Indo-Aryan language spoken by about 10 million people in India. It is spoken in the Indian state of Bihar and is also spoken in the neighboring state of Jharkhand. Angika is written in the Devanagari script.
Maithili is the only language of Bihar that is spoken in parts of Nepal as well. It is spoken in the Terai region of Nepal, which is the southern part of the country. Maithili is the official language of the Terai region and is also spoken in the neighboring districts of India.