The Tharon Cave in Manipur is known for its:

Rich prehistoric artifacts
Buddhist relics
Hindu shrines
Modern graffiti

The correct answer is: a) Rich prehistoric artifacts.

The Tharon Cave is a cave located in the Senapati district of Manipur, India. It is known for its rich prehistoric artifacts, including stone tools, pottery, and human remains. The cave is believed to have been inhabited by humans for over 10,000 years.

The other options are incorrect because:

  • Option b) is incorrect because the Tharon Cave is not known for its Buddhist relics.
  • Option c) is incorrect because the Tharon Cave is not known for its Hindu shrines.
  • Option d) is incorrect because the Tharon Cave does not have any modern graffiti.