The correct answer is: c) Megalithic structures and burial sites.
Megalithic structures are large stone monuments that were built by ancient peoples. They are found all over the world, and they come in a variety of shapes and sizes. Some of the most common types of megalithic structures include:
- Dolmens: These are large stone slabs that are supported by upright stones. They were often used as tombs.
- Menhirs: These are single standing stones. They may have been used as markers or for religious purposes.
- Cairns: These are piles of stones that were often used as burial mounds.
Megalithic structures are often found in areas with a long history of human habitation. They can provide valuable information about the cultures that built them. For example, the type of stone used, the way the stones are arranged, and the location of the structure can all provide clues about the beliefs and practices of the people who built it.
Archaeological surveys in Mizoram have revealed the presence of a number of megalithic structures. These structures date back to the Neolithic period, and they provide evidence of the early inhabitants of Mizoram. The structures are important because they help us to understand the history and culture of Mizoram.
The other options are incorrect because they do not accurately reflect the findings of archaeological surveys in Mizoram. Option a) is incorrect because there is no evidence of ancient temples or palaces in Mizoram. Option b) is incorrect because there is no evidence of prehistoric cave paintings in Mizoram. Option d) is incorrect because there is no evidence of inscribed copper plates or coins in Mizoram.