The correct answer is: B. Munda family.
Santhali is a Munda language spoken by the Santhal people of eastern India and Bangladesh. It is the most widely spoken tribal language in India, with over 7 million speakers. Santhali is a tonal language with a complex system of noun classes and verb conjugations. It is written in the Ol Chiki script, which was developed in the 19th century by the Christian missionary Hira Lal Biswas.
The Munda languages are a group of languages spoken by the Munda peoples of eastern India and Bangladesh. The Munda languages are part of the Austroasiatic language family. The Munda languages are divided into two main branches: the North Munda languages and the South Munda languages. The North Munda languages are spoken in the Chota Nagpur Plateau of eastern India, while the South Munda languages are spoken in the Western Ghats of western India.
The Munda languages are tonal languages, which means that the pitch of a word can change its meaning. The Munda languages also have a complex system of noun classes, which are used to classify nouns according to their meaning. The Munda languages are written in a variety of scripts, including the Ol Chiki script, the Devanagari script, and the Latin script.
The Munda languages are a rich and diverse group of languages with a long history. The Munda languages are an important part of the cultural heritage of the Munda peoples.
The other options are incorrect because:
- Oraon is a language of the Dravidian language family.
- Tharu is a language of the Indo-Aryan language family.
- Gond is a language of the Dravidian language family.