Refer to the exhibits. A developer is troubleshooting an API with the given API documentation and cURL command. What is the cause of this problem?

Refer to the exhibits. A developer is troubleshooting an API with the given API documentation and cURL command. What is the cause of this problem?

A. The authorization header is missing or incomplete. B. The request body is missing or incomplete. C. The API token specified is expired. D. The user is not allowed to post messages from their account.