The correct answer is: d) All of the above
The Mahanadi, Brahmani, and Baitarani are all major rivers in Odisha and are important sources of irrigation for agriculture in the state.
The Mahanadi is the largest river in Odisha, flowing through the state from north to south. It is a major source of water for irrigation, drinking water, and hydroelectric power. The Brahmani is the second largest river in Odisha, flowing through the state from west to east. It is also a major source of water for irrigation, drinking water, and hydroelectric power. The Baitarani is a smaller river that flows through the state from north to south. It is a major source of water for irrigation in the southern part of the state.
All three rivers are important for the economy of Odisha. They provide water for irrigation, drinking water, and hydroelectric power. They also support a variety of industries and businesses.