Bollworms attacks

Options

A. Bt cotton
B. Tomato
C. Cotton
D. Bacillus thuringiensis

Answer

### Step-by-Step Solution:

1. **Identify the Pest**: The question refers to "Bollworms," which are known to be a significant pest affecting cotton crops. Bollworms are the larvae of certain moth species that feed on cotton plants.

2. **Understand the Impact**: Bollworms are considered major pests in agriculture, particularly in cotton cultivation. They can cause substantial damage to cotton crops, leading to economic losses for farmers.

3. **Evaluate the Options**: The options provided are:
- BT cotton
- Tomato cotton
- Bacillus thuringiensis

4. **Analyze Each Option**:
- **BT Cotton**: This is a genetically modified variety of cotton that has been engineered to express a protein from the bacterium Bacillus thuringiensis (Bt). This protein acts as an insecticide against bollworms, making BT cotton resistant to their attacks.
- **Tomato Cotton**: This option seems incorrect as there is no such thing as tomato cotton; tomatoes are not typically associated with bollworm attacks.
- **Bacillus thuringiensis**: While this bacterium is the source of the insecticidal protein used in BT cotton, it is not a plant and does not directly relate to the question about bollworm attacks.

5. **Conclusion**: The correct answer to the question regarding which crop is affected by bollworm attacks is cotton. BT cotton is a solution to the problem, but the question specifically asks about the crop that is attacked.

### Final Answer:
The correct option is **cotton**.

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