What action is necessary regarding the cleaner unless a complaint is made?

The correct answer, which states that no action is needed regarding the cleaner unless a complaint is made, emphasizes the principle of responding to verified issues rather than taking proactive measures without cause. In practice, this approach ensures that resources are not wasted on unnecessary actions when there are no complaints or reported issues from either passengers or employees.

In the absence of any complaints, the cleaner's work is presumed to meet the required standards, which fosters a positive work environment and allows for efficient operations. It also reflects the importance of addressing concerns based on evidence rather than speculation, ensuring that actions are justified and appropriate.

Taking immediate suspension, conducting an investigation, or requiring a mandatory training session without any complaints could be seen as punitive measures that may lead to unnecessary disruption and could negatively affect morale. By only acting upon complaints, the focus remains on maintaining a fair and balanced approach in dealing with personnel matters.