Plants that might have been gathered or cultivated by prehistoric communities in Mizoram include:

Rice, millet, and yams
Wheat, barley, and lentils
Corn, potatoes, and tomatoes
Apples, oranges, and grapes

The correct answer is: a) Rice, millet, and yams.

Rice, millet, and yams are all plants that are native to Asia and have been cultivated in the region for thousands of years. They are all important food crops and have been a staple of the diet of many people in Asia for centuries.

Wheat, barley, and lentils are all plants that are native to the Middle East and have been cultivated in the region for thousands of years. They are all important food crops and have been a staple of the diet of many people in the Middle East for centuries.

Corn, potatoes, and tomatoes are all plants that are native to the Americas and have been cultivated in the region for thousands of years. They are all important food crops and have been a staple of the diet of many people in the Americas for centuries.

Apples, oranges, and grapes are all plants that are native to Europe and have been cultivated in the region for thousands of years. They are all important food crops and have been a staple of the diet of many people in Europe for centuries.

However, none of these plants are native to Mizoram, which is a state in northeastern India. The plants that are native to Mizoram and that might have been gathered or cultivated by prehistoric communities in Mizoram include rice, millet, and yams.