Final answer:
Without the code example, the best inference is that in standard web development practice, a GET request with the database key in the URL is typically used for retrieving specific details from a server.
Step-by-step explanation:
In the provided code example concerning how client requests for specific song details are communicated to a server, it's essential to know the appropriate protocol and method used for such interactions. Regarding the client requests and depending on the code example that was discussed (which isn't provided here), we can infer that:
- If the client sends a GET request and includes the database key in the URL, then it is consistent with web protocol standards where query parameters can be passed in the URL for retrieval actions.
- In contrast, sending the database key within the message body is more typical of a POST request, which is generally used for submitting data, not retrieving it.
- The use of JSON objects is common in both GET and POST requests but typically, a GET request would not include a message body; thus, including a JSON object with the song title or key would not align with standard GET request behavior.
The correct answer to the question would depend on the specific implementation details in the code example provided, which are not included here. However, in general web development practices, a GET request with the key appended in the URL (option a) is standard for retrieving specific database entries.