Which one of the following is an ethnic community of Assam?

Which one of the following is an ethnic community of Assam?

Bhil
Gond
Ahom
Adi
This question was previously asked in
UPSC CDS-1 – 2023
The Ahom are a major ethnic group found primarily in the state of Assam, India. They are descendants of the Tai-Ahom people who migrated from present-day Yunnan, China, in the 13th century and established the Ahom Kingdom in the Brahmaputra Valley.
The Ahom language is a Tai language, although over time the Ahom people largely adopted the Assamese language. They played a significant role in the history and culture of Assam.
Bhil and Gond are large tribal communities found primarily in central and western India. Adi is a major tribal community of Arunachal Pradesh.