*Question G1A01:
[97.301(d)] On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?*  

*Correct Answer is  C: 80 meters, 40 meters, 20 meters, and 15 meters*  

### AI Response: (may contain errors)  

To determine which HF and/or MF amateur bands have portions where General class licensees cannot transmit, we need to understand the band privileges associated with different amateur radio licenses.

### Correct Answer: 
**80 meters, 40 meters, 20 meters, and 15 meters**

#### Explanation:
- **General Class License Privileges**: General class licensees have access to most HF bands, but there are specific segments within certain bands that are restricted.
- **80 meters**: General class operators can use the entire band, but there are segments reserved for other classes.
- **40 meters**: Similar to 80 meters, there are segments that are not available to General class operators.
- **20 meters**: Again, there are portions of this band that are restricted.
- **15 meters**: This band also has segments that General class operators cannot use.

### Why Other Choices are Incorrect:
- **Choice A (60 meters, 30 meters, 17 meters, and 12 meters)**: 
  - 60 meters is a band with specific channels and restrictions, but General class operators can use it. 
  - 30 meters is a digital-only band available to General class operators.
  - 17 meters and 12 meters are fully available to General class operators.
  
- **Choice B (160 meters, 60 meters, 15 meters, and 12 meters)**: 
  - 160 meters is available to General class operators.
  - 60 meters, as mentioned, has restrictions but is accessible.
  - 15 meters and 12 meters are fully available.

- **Choice C (80 meters, 40 meters, 20 meters, and 15 meters)**: 
  - While 80, 40, and 20 meters have restrictions, 15 meters is fully available to General class operators, making this choice incorrect.

### Summary:
- The correct answer identifies bands where General class operators have limited access due to specific restrictions.
- Understanding band privileges is crucial for the Extra Class exam, as it helps in identifying where you can legally operate.

### Useful Rules of Thumb:
- Always check the latest band plans and regulations for your license class.
- Familiarize yourself with the specific segments of each band that are restricted to ensure compliance while operating.