The correct answer is (b) India.
Red gram, also known as Bengal gram, dengu, or red lentil, is a legume that is native to India. It is a member of the pea family and is closely related to chickpeas and lentils. Red gram is a popular food in India and is used in a variety of dishes, including curries, soups, and stews. It is also a good source of protein, fiber, and iron.
Option (a), America, is incorrect because red gram is not native to America. It is believed to have originated in India and was later introduced to other parts of the world, including America.
Option (c), South Africa, is incorrect because red gram is not native to South Africa. It is believed to have originated in India and was later introduced to other parts of the world, including South Africa.
Option (d), Egypt, is incorrect because red gram is not native to Egypt. It is believed to have originated in India and was later introduced to other parts of the world, including Egypt.