The correct answer is Bajra.
Bajra is a type of millet that is grown in semi-arid regions. It is a drought-tolerant crop that can grow in poor soils. Bajra is a major staple food in many parts of Africa and Asia. It is also used to make flour, porridge, and beer.
Jowar is another type of millet that is grown in semi-arid regions. It is a less drought-tolerant crop than bajra, but it is more tolerant of high temperatures. Jowar is used to make flour, porridge, and bread.
Rice is a cereal crop that is grown in flooded fields. It is a water-intensive crop that requires a lot of rainfall or irrigation. Rice is a staple food in many parts of Asia. It is also used to make noodles, sushi, and other dishes.
Sugarcane is a grass that is grown in tropical and subtropical regions. It is a high-sugar crop that is used to make sugar, ethanol, and paper. Sugarcane is a major export crop for many countries, including Brazil, India, and China.
Bajra is the best crop to grow in semi-arid regions of Mahendragarh because it is a drought-tolerant crop that can grow in poor soils. It is also a major staple food in many parts of Africa and Asia.