*Question E2C07:
What is the Cabrillo format?*  

*Correct Answer is  A: A standard for submission of electronic contest logs*  

### AI Response: (may contain errors)  

The correct answer is: **A: A standard for submission of electronic contest logs**

### Explanation:

1. **Why the correct answer is correct:**
   - The Cabrillo format is a standardized file format used for submitting electronic logs of contacts made during amateur radio contests. It ensures that all necessary information is included and formatted consistently, making it easier for contest organizers to process and verify the logs.

2. **Why the other choices are incorrect:**
   - **B: A method of exchanging information during a contest QSO**  
     This choice is incorrect because the Cabrillo format is not used for exchanging information during a QSO (contact). Instead, it is used after the contest to submit logs.
   
   - **C: The most common set of contest rules**  
     This choice is incorrect because the Cabrillo format is not a set of rules. It is a file format for log submission. Contest rules are separate and vary between different contests.
   
   - **D: A digital protocol specifically designed for rapid contest exchanges**  
     This choice is incorrect because the Cabrillo format is not a communication protocol. It is a file format for submitting logs, not for conducting exchanges during the contest.

### Additional Information:

- The Cabrillo format typically includes information such as the date and time of each contact, the call signs of both stations, the exchange information, and the band and mode used. This standardized format helps ensure that all necessary data is captured and can be easily processed by contest organizers.