*Question E1F10:
[97.201] Who may be the control operator of an auxiliary station?*  

*Correct Answer is  B: Only Technician, General, Advanced, or Amateur Extra class operators*  

### AI Response: (may contain errors)  

The correct answer to the question about who may be the control operator of an auxiliary station is:

**Correct Answer: B: Only Technician, General, Advanced, or Amateur Extra class operators**

### Explanation:

1. **Why the correct answer is correct:**
   - According to the FCC regulations, the control operator of an auxiliary station must hold at least a Technician class license. This means that any operator with a Technician, General, Advanced, or Amateur Extra class license is authorized to control an auxiliary station. This rule ensures that the operator has the necessary knowledge and skills to manage the station effectively.

2. **Why the other choices are incorrect:**
   - **A: Any licensed amateur operator**  
     - This is incorrect because it includes operators with a Novice or unlicensed status, who do not have the required privileges to control an auxiliary station.
   - **C: Only General, Advanced, or Amateur Extra class operators**  
     - This is incorrect because it excludes Technician class operators, who are also permitted to control auxiliary stations.
   - **D: Only Amateur Extra class operators**  
     - This is incorrect because it unnecessarily restricts the control operator to only those with the highest level of licensing, excluding Technician, General, and Advanced class operators who are also qualified.

### Useful Rules of Thumb:
- Always check the specific privileges associated with each class of amateur radio license.
- Remember that the minimum requirement for controlling an auxiliary station is a Technician class license. 

This understanding is crucial for ensuring compliance with FCC regulations and for effective operation of auxiliary stations in amateur radio.