The end products of fermentation are

Options

A. `O_(2) " and " C_(2)H_(5)OH`
B. `CO_(2)` and acetaldehyde
C. `CO_(2) " and " O_(2)`
D. `CO_(2) " and " C_(2)H_(5)OH`

Answer

### Step-by-Step Solution:

1. **Understanding Fermentation**:
- Fermentation is a type of anaerobic respiration, which means it occurs in the absence of oxygen.

2. **Types of Respiration**:
- Cellular respiration can be divided into two main types: aerobic respiration (which requires oxygen) and anaerobic respiration (which does not require oxygen).

3. **Products of Anaerobic Respiration**:
- During anaerobic respiration, specifically in the process of fermentation, various products are formed.

4. **Identifying End Products**:
- The primary end products of fermentation include:
- Carbon dioxide (CO2)
- Ethanol (C2H5OH), which is a type of alcohol
- Additionally, organic acids may also be produced depending on the type of fermentation.

5. **Conclusion**:
- Therefore, the end products of fermentation are carbon dioxide and ethanol. The correct answer to the question is CO2 and C2H5OH.