A strip search can be conducted by _________ at the school.

The correct answer is that a strip search can be conducted by no one at the school, as it breaches individual rights and privacy expectations. Generally, strip searches are considered highly invasive and can lead to significant legal ramifications if not conducted under specific legal guidelines and protocols. In educational settings, these searches typically require a strong justification and must respect students' rights, often leading to the conclusion that no staff member should carry out such invasive procedures.

Further context for the understanding of the other options includes the fact that while authorities, such as the principal or security personnel, may have some level of oversight in areas regarding general search protocols, a strip search specifically is not something that should be employed within a school environment without strict adherence to laws that govern personal privacy and the wellbeing of students. The clear stance is that no one within the school has the authority or should have the responsibility to conduct a strip search, reflecting a commitment to maintaining a safe and respectful environment for all students.