Manipur’s prehistoric cave paintings depicting human and animal figures are primarily found in:

The correct answer is: a) Ukhrul District.

Manipur’s prehistoric cave paintings depicting human and animal figures are primarily found in Ukhrul District. The paintings are located in a number of caves in the district, including the Pumlenpat Cave, the Chingai Cave, and the Thongam Cave. The paintings are believed to have been created by the early inhabitants of Manipur, and they depict a variety of scenes from daily life, as well as religious and mythological figures. The paintings are an important part of Manipuri culture and history, and they are a popular tourist attraction.

The other options are incorrect because they are not the districts in Manipur where prehistoric cave paintings are found.

• Option b) Tamenglong District is home to a number of historical and cultural sites, but it is not known for its prehistoric cave paintings.
• Option c) Senapati District is home to the Kangla Fort, one of the most important historical sites in Manipur. However, the district is not known for its prehistoric cave paintings.
• Option d) Thoubal District is the most populous district in Manipur. It is home to a number of important cultural and historical sites, but it is not known for its prehistoric cave paintings.