Refer to the exhibit.

The HTTP call to create a room named "cisco" through the Webex API is returning a 400 Bad Request error because the body parameter is incorrect. The correct body parameter to create a room is "name" instead of "team".

A. Replace the team body parameter with the name body parameter - Correct. The correct parameter for creating a room is "name". B. Replace cisco with a valid name for a team - Incorrect. The issue is with the parameter name, not the value. C. Change the token in the header with the authorization token - Incorrect. The token appears to be correct since it is a 400 error and not a 401 Unauthorized error. D. Change the HTTP method of the call to PUT - Incorrect. The correct HTTP method for creating a room is POST.

References:

Cisco Webex API Documentation - Create a Room