The main staple food crops grown in Arunachal Pradesh include:

Rice and maize
Wheat and barley
Pulses and oilseeds
Fruits and vegetables

The correct answer is: a) Rice and maize.

Rice and maize are the main staple food crops grown in Arunachal Pradesh. Rice is the most important crop in the state, accounting for over 80% of the total area under cultivation. Maize is the second most important crop, accounting for about 10% of the total area under cultivation. Other important crops grown in the state include wheat, barley, pulses, oilseeds, fruits, and vegetables.

Rice is a cereal grain that is widely grown and consumed in Asia. It is the staple food for over half of the world’s population. Rice is a member of the grass family and is closely related to wheat, barley, and oats. Rice is a versatile crop that can be grown in a variety of climates and soils. It is a major source of carbohydrates, protein, and vitamins.

Maize is a cereal grain that is native to Central America. It is the second most important cereal crop in the world, after rice. Maize is a versatile crop that can be used to make a variety of products, including food, feed, fuel, and ethanol. Maize is a major source of carbohydrates, protein, and vitamins.

Wheat is a cereal grain that is widely grown and consumed in Europe, Asia, and North America. It is the staple food for over one-third of the world’s population. Wheat is a member of the grass family and is closely related to barley, oats, and rice. Wheat is a versatile crop that can be grown in a variety of climates and soils. It is a major source of carbohydrates, protein, and vitamins.

Barley is a cereal grain that is widely grown and consumed in Europe, Asia, and North America. It is the fourth most important cereal crop in the world, after rice, wheat, and maize. Barley is a member of the grass family and is closely related to wheat, oats, and rice. Barley is a versatile crop that can be grown in a variety of climates and soils. It is a major source of carbohydrates, protein, and vitamins.

Pulses are a group of legumes that are widely grown and consumed in Asia, Africa, and Latin America. They are a major source of protein, carbohydrates, and fiber. Pulses are also a good source of vitamins and minerals, including iron, zinc, and folate.

Oilseeds are a group of seeds that are rich in oil. They are widely grown and consumed in Asia, Africa, and Latin America. Oilseeds are a major source of vegetable oil, which is used in cooking, cosmetics, and other products. Oilseeds are also a good source of protein, carbohydrates, and fiber.

Fruits and vegetables are a group of plants that are widely grown and consumed around the world. They are a major source of vitamins, minerals, and fiber. Fruits and vegetables are also a good source of antioxidants, which can help protect the body against disease.