Explanation:

- Aus, Aman, and Boro are terms associated with different planting and harvesting seasons of Rice, specifically in Bangladesh and parts of India. These terms refer to the types of rice crops grown in different seasons.

- Aus rice is typically sown in early summer and harvested in the fall.

- Aman rice is the main rice crop, sown before the monsoon and harvested in winter.

- Boro rice is grown during the dry season with irrigation.

- Option 1: Wheat - Grown in winter in many regions and unrelated to the terms Aus, Aman, and Boro.

- Option 2: Maize - Typically grown in warm climates and doesn't use these terms.

- Option 3: Rice - ?? Correct. These names refer to rice cultivation.

- Option 4: Gram - A type of pulse, also not associated with Aus, Aman, and Boro.