`NH_(3)` released from

Options

A. Photorespiration
B. Dark respiration
C. CAM
D. All of these

Answer

### Step-by-Step Solution:

1. **Understanding the Context**: The question asks about the release of ammonia (NH3) in plants. We need to identify the process in which this occurs.

2. **Identifying the Processes**: The main processes in plants related to photosynthesis and respiration include:
- Photosynthesis (light reactions and dark reactions)
- Photorespiration
- CAM pathway (Crassulacean Acid Metabolism)

3. **Focusing on Photorespiration**: Among these processes, photorespiration is known to involve the release of ammonia. It is a process that occurs in the chloroplasts, peroxisomes, and mitochondria.

4. **Chemical Reaction Involved**: In photorespiration, two molecules of glycine combine to form one molecule of serine. During this reaction, ammonia (NH3) and carbon dioxide (CO2) are released as byproducts.

5. **Energy Consideration**: It is important to note that photorespiration is considered a wasteful pathway because it consumes ATP without producing any useful energy or sugars.

6. **Conclusion**: Based on the above information, we can conclude that the release of ammonia (NH3) occurs during the process of photorespiration.

### Final Answer:
Ammonia (NH3) is released during the process of **photorespiration**.