The correct answer is (c). Rice and sugarcane are the most water-guzzling crops of India that depend heavily on groundwater.
Wheat and millets are not as water-intensive as rice and sugarcane. Maize is a water-intensive crop, but it is not as water-intensive as rice and sugarcane.
Rice is a staple food in India and is grown in many parts of the country. It is a water-intensive crop and requires a lot of water to grow. Sugarcane is also a water-intensive crop and is grown in many parts of the country. It is used to make sugar and ethanol.
Groundwater is a major source of water for irrigation in India. However, groundwater is being depleted at an alarming rate. This is due to the increasing demand for water for irrigation, domestic use, and industrial use.
The depletion of groundwater is a serious problem and it is important to conserve water. This can be done by using water-efficient irrigation methods, rainwater harvesting, and by using less water for domestic and industrial use.