The correct answer is: b) Areas with limited rainfall.
Millets and groundnuts are drought-tolerant crops, which means they can grow in areas with limited rainfall. They are also relatively low-maintenance crops, which makes them a good choice for farmers in developing countries who may not have access to a lot of resources.
Millets are a type of grass that is grown for its grain. There are many different types of millet, but the most common ones are pearl millet, sorghum, and finger millet. Millets are a staple food in many parts of the world, and they are also used to make flour, porridge, and beer.
Groundnuts, also known as peanuts, are a legume that is grown for its edible seeds. Groundnuts are a good source of protein, fiber, and vitamins. They are also used to make peanut butter, peanut oil, and peanut candy.
Option a) is incorrect because millets and groundnuts are not well-suited to areas with high rainfall. Too much rain can cause the crops to rot or become diseased.
Option c) is incorrect because millets and groundnuts do not tolerate saline soils. Saline soils are high in salt, which can damage the crops.
Option d) is incorrect because millets and groundnuts do not grow well in hilly areas with steep slopes. The steep slopes can make it difficult to plant and harvest the crops.