The correct answer is: C. Santhal
Kohbar paintings are a type of folk art that is traditionally created by the Santhal people of India. The paintings are made on cloth or paper using natural pigments and depict scenes from Santhal life, such as weddings, festivals, and hunting. Kohbar paintings are often used as decorations in Santhal homes and are also given as gifts.
The Birhor are a tribal people of India who live in the forests of Jharkhand, Bihar, and Odisha. The Oraon are a tribal people of India who live in the states of Jharkhand, Bihar, Chhattisgarh, and Odisha. None of these tribes are known for their Kohbar paintings.
Kohbar paintings are a unique and beautiful form of folk art that is an important part of Santhal culture. They are a valuable record of Santhal life and history, and they continue to be created today by Santhal artists.