The correct answer is: d) The Krishna-Godavari delta.
The Krishna-Godavari delta is a large, fertile plain located in the southeastern Indian state of Andhra Pradesh. It is formed by the confluence of the Krishna and Godavari rivers, and is one of the most important agricultural regions in India. The delta is well-suited for the cultivation of a variety of crops, including mangoes, bananas, and citrus fruits.
The Eastern Ghats are a mountain range that runs along the eastern coast of India. They are a major barrier to rainfall, and the region east of the Ghats is much drier than the region west of the Ghats. This is why the Eastern Ghats are not a major agricultural region.
The Deccan Plateau is a large, high plateau located in the central and southern Indian subcontinent. It is a dry, arid region, and is not well-suited for the cultivation of mangoes, bananas, and citrus fruits.
Coastal Andhra and Rayalaseema are two regions located in the southeastern Indian state of Andhra Pradesh. They are both located on the coast of the Bay of Bengal, and are characterized by their hot, humid climate. These regions are well-suited for the cultivation of a variety of crops, including rice, sugarcane, and cotton. However, they are not major producers of mangoes, bananas, and citrus fruits.