The correct answer is: Dialects of Bhojpuri.
Bhojpuri is a language spoken by about 45 million people in India and Nepal. It is a member of the Indo-Aryan language family and is closely related to Hindi. Bhojpuri is a vernacular language, which means that it is spoken in everyday life and is not used in formal settings. There are many different dialects of Bhojpuri, and the language varies from region to region.
Bhojpuri folk songs are typically sung in a dialect of Bhojpuri that is specific to the region where the song originates. This is because folk songs are often passed down orally from generation to generation, and the language of the song can change over time.
The other options are incorrect because:
- Standardized Bhojpuri is a form of Bhojpuri that is used in formal settings, such as education and government. It is not the language of most Bhojpuri folk songs.
- A mix of Hindi and Bhojpuri is not a correct description of the language of most Bhojpuri folk songs. Bhojpuri is a distinct language from Hindi, and the two languages are not mutually intelligible.
- Formal Hindi is a form of Hindi that is used in formal settings, such as education and government. It is not the language of most Bhojpuri folk songs.