Which of the following statements about the Norman mound builders is true? A. They hunted megafauna during the altithermal period. B. They built their society more than 9,000 years ago. C. Their culture rose to power after the Harlan mound builders. D. They had a more complex trade network than the Spiro mound builders.

B. They built their society more than 9,000 years ago.

Explanation:

The Norman mound builders were a group of North American natives who lived during prehistory. This means that they built their society more than 9,000 years ago. The name "Norman mound builders" was given because of a very peculiar custom of these peoples. They used to bury their dead in mosques that had tons of clay and sand. These monticles, had a strong architectural value, since many of them had artistic shapes and presented animal shapes like bears and snakes.

the us constitution is a living document, meaning that it can be changed over time as the country changes.