The correct answer is rice. Rice is the staple food of Odisha and is grown in almost all parts of the state. It is a major source of carbohydrates and protein for the people of Odisha. Rice is also a major export crop for Odisha.
Wheat is not a major crop in Odisha. It is grown in some parts of the state, but it is not as important as rice. Wheat is a major source of carbohydrates for the people of Odisha, but it is not as important as rice.
Maize is not a major crop in Odisha. It is grown in some parts of the state, but it is not as important as rice or wheat. Maize is a major source of carbohydrates for the people of Odisha, but it is not as important as rice or wheat.
Pulses are not a major crop in Odisha. They are grown in some parts of the state, but they are not as important as rice, wheat, or maize. Pulses are a major source of protein for the people of Odisha, but they are not as important as rice, wheat, or maize.