The correct answer is: Both a and b.
The Godavari and Krishna are two of the major rivers that flow through Andhra Pradesh. The Godavari is the longest river in India, and the Krishna is the second longest. Both rivers are important sources of water for irrigation and drinking water. They are also important for transportation and fishing.
The Godavari River originates in the Western Ghats in Maharashtra and flows through the states of Telangana, Andhra Pradesh, and Odisha. It is a perennial river, which means that it flows all year round. The Godavari River is a major source of water for irrigation and drinking water in the states through which it flows. It is also an important transportation route, and is used for fishing and other water sports.
The Krishna River originates in the Western Ghats in Karnataka and flows through the states of Telangana, Andhra Pradesh, and Karnataka. It is a perennial river, which means that it flows all year round. The Krishna River is a major source of water for irrigation and drinking water in the states through which it flows. It is also an important transportation route, and is used for fishing and other water sports.