restricted area? Under what condition, if any, may you operate an unmanned aircraft in a A. When flying on airways with an ATC clearance. B. with the controlling agency's authorization. C. Regulations do not allow this.

B. with the controlling agency's authorization.<br /><br />Operating an unmanned aircraft in a restricted area typically requires specific authorization from the controlling agency, such as the Federal Aviation Administration (FAA) in the United States. These areas are designated for national security, safety, or other reasons, and normal airspace rules do not apply.