A phagotrophic euglenoid is

Options

A. Euglena
B. Peranema
C. Rhabdomonas
D. Both B and C.

Answer

To determine which phagotrophic euglenoid is correct among the options provided, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for a phagotrophic euglenoid, meaning we are looking for a euglenoid that obtains its nutrients by engulfing food particles rather than through photosynthesis.

2. **Review the Options**: The options given are:
- A) Euglena
- B) Pyranema
- C) Rhabdomonas
- D) Both B and C

3. **Analyze Euglena**: Euglena is known for its ability to perform photosynthesis due to the presence of chloroplasts. It primarily exhibits autotrophic nutrition, which means it does not fit the criteria of being phagotrophic.

4. **Analyze Pyranema**: Pyranema is a genus of euglenoids that is free-living and phagotrophic. It does not have chloroplasts and therefore cannot perform photosynthesis. This aligns with the definition of phagotrophic nutrition, where the organism engulfs food particles.

5. **Analyze Rhabdomonas**: Rhabdomonas is also a genus of euglenoids, but it is primarily autotrophic due to the presence of chloroplasts. Therefore, it does not fit the criteria for being phagotrophic.

6. **Evaluate the Combined Option (D)**: Since Rhabdomonas does not meet the phagotrophic criteria, the combined option (D) which states "both B and C" is incorrect.

7. **Conclusion**: Based on the analysis, the only phagotrophic euglenoid among the options is Pyranema. Therefore, the correct answer is **B) Pyranema**.

### Final Answer:
The correct answer is **B) Pyranema**.