The common mode of reproduction in bacteria is

Options

A. Fission
B. Budding
C. Sexual reproduction
D. Sporulation.

Answer

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the common mode of reproduction in bacteria.

2. **Identify Reproductive Methods**: Bacteria can reproduce through various methods, including asexual and sexual reproduction. The asexual methods include fission, budding, and fragmentation, while sexual reproduction involves processes like transformation, conjugation, and transduction.

3. **Focus on Asexual Reproduction**: Since the question is about the common mode of reproduction, we need to focus on asexual reproduction, which involves only one parent and does not require gamete fusion.

4. **Define Fission**: The most common method of asexual reproduction in bacteria is fission. In this process, the bacterial cell divides into two equal halves. The cytoplasm and nuclear material are divided equally, and the cell wall splits, resulting in the formation of two daughter cells.

5. **Evaluate Other Options**: The other methods mentioned (budding, sexual reproduction, and sporulation) are less common in bacteria. Budding involves the formation of an outgrowth that detaches to form a new organism, while sexual reproduction involves the fusion of gametes, which is not the primary mode for most bacteria.

6. **Conclusion**: Based on the information, the common mode of reproduction in bacteria is fission.

### Final Answer:
The common mode of reproduction in bacteria is **fission**.

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