If you identify a minor defect with your bus (excluding school buses) you must...?

Answer: C — Note it on the inspection report and report it to the operator

If you ignore a minor defect and it becomes major, it could lead to costly repairs or pose a safety risk. Fixing it immediately without noting it also poses a risk as there may be underlying issues that need to be addressed. Reporting the defect only to the operator may not ensure that it is properly addressed and could lead to further complications. Therefore, the best course of action is to note the defect on the inspection report and report it to the operator so that it can be addressed properly and in a timely manner.