Japanese-American citizens were denied their rights and sent to internment camps, as the government believed that some of them were working with the Japanese government, and could feed intel back to them. At the end of the war, however, these citizens were released.
I believe the answer is d, hunting
Exceptionally high population densities occur in the Yangtze delta, the Pearl River Delta, and on the Chengdu Plain of the western Sichuan Basin. Most of the high-density areas are coterminous with the alluvial plains on which intensive agriculture is centred.
