The correct answer is: a) Napachik.
Napachik is a prehistoric site in Manipur associated with evidence of early rice cultivation. It is located in the Senapati district of Manipur, India. The site was discovered in 1974 by a team of archaeologists from the Archaeological Survey of India. The excavations at Napachik have revealed evidence of rice cultivation dating back to the Neolithic period. The site has also yielded a number of other artifacts, including stone tools, pottery, and beads.
The discovery of rice cultivation at Napachik is significant because it provides evidence of the early development of agriculture in India. The site also provides insights into the lives of the people who lived in Manipur during the Neolithic period.
The other options are incorrect because they are not associated with evidence of early rice cultivation.
- Option b, Phunan, is a prehistoric site in Manipur associated with evidence of early iron smelting.
- Option c, Kangla, is a historical fort in Manipur.
- Option d, Songbu Cave, is a cave in Manipur that contains evidence of human habitation dating back to the Paleolithic period.