The correct answer is: a) Canals.
Canals are the primary source of irrigation in Andhra Pradesh, accounting for about 60% of the state’s irrigated area. The state has a network of canals that are fed by rivers, reservoirs, and tanks. The canals are used to irrigate crops such as rice, cotton, and sugarcane.
Tanks are the second most important source of irrigation in Andhra Pradesh, accounting for about 20% of the state’s irrigated area. Tanks are small reservoirs that are built to store rainwater. The water from the tanks is used to irrigate crops during the dry season.
Wells are the third most important source of irrigation in Andhra Pradesh, accounting for about 10% of the state’s irrigated area. Wells are dug to access groundwater. The water from the wells is used to irrigate crops during the dry season.
Drip irrigation is a method of irrigation that delivers water directly to the roots of plants. Drip irrigation is a more efficient method of irrigation than traditional methods such as canals and tanks. However, drip irrigation is more expensive to install and maintain.
In conclusion, the primary source of irrigation in Andhra Pradesh is canals. Canals are followed by tanks, wells, and drip irrigation.