Crop plants may be attacked by diseases which affect the crop production. Bacteria is the causal organism of diseases like_________

Options

A. Smut of wheat
B. Wilt of potato
C. Blight of potato
D. Both (A) and (C)

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a disease caused by bacteria that affects crop production.

2. **Identifying Bacterial Diseases**: We need to recall some common diseases in crops that are caused by bacteria.

3. **Analyzing the Options**: The transcript mentions several diseases:
- Smut of wheat, caused by a fungus (Ustilago).
- Wilt of potato, caused by bacteria (Ralstonia).
- White rot of potato, caused by a fungus (Phytophthora).

4. **Selecting the Correct Disease**: From the diseases mentioned, the wilt of potato is specifically noted as being caused by bacteria.

5. **Final Answer**: Therefore, the disease caused by bacteria that affects crop production is **wilt of potato**.

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