*Question G1A08:
[97.301(b)] Which HF bands have segments exclusively allocated to Amateur Extra licensees?*  

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

### AI Response: (may contain errors)  

The correct answer to the question about HF bands exclusively allocated to Amateur Extra licensees is:

**B: 80 meters, 40 meters, 20 meters, and 15 meters.**

### Explanation of the Correct Answer:
- The bands mentioned (80m, 40m, 20m, and 15m) have segments that are exclusively available to Amateur Extra licensees. This means that only operators with an Extra Class license can use these segments of the bands.

### Explanation of Incorrect Choices:
- **A: All HF bands**  
  This is incorrect because not all HF bands are exclusively allocated to Extra Class licensees. For example, some segments of the 10m band are available to General and Technician licensees.

- **C: All HF bands except 160 meters and 10 meters**  
  This is incorrect because, while 160m and 10m do have segments available to other classes, the statement implies that all other HF bands are exclusively for Extras, which is not true.

- **D: 60 meters, 30 meters, 17 meters, and 12 meters**  
  This is incorrect because these bands have shared allocations. For instance, 60m is a shared band with specific power limits and restrictions, and 30m is also shared with other license classes.

### Summary of HF Band Allocations:
- **80m, 40m, 20m, and 15m**: Have segments exclusively for Extra Class.
- **160m and 10m**: Have segments available to other license classes.
- **60m, 30m, 17m, and 12m**: Are shared bands with restrictions.

### Useful Rules of Thumb:
- Always check the band plan for specific allocations and restrictions for each license class.
- Remember that exclusive segments are a key feature of the Extra Class license, allowing for more privileges on certain bands.