Final answer:
An effective school security approach includes attendance monitoring, security technology, partnerships with law enforcement and community, and crisis planning. All listed options (A, B, C, D) are part of a comprehensive security plan, so there is no correct answer for something to exclude.
Step-by-step explanation:
An effective approach to school security should incorporate a variety of strategies to ensure the safety of students and staff. Key elements of a comprehensive security plan include attendance monitoring, the use of security technology, the establishment of partnerships between schools, law enforcement, and the community, and comprehensive crisis planning. However, one component that is not part of an effective school security approach is allowing students to bring harmful objects into school, which is not listed as an option. All the provided options (A, B, C, and D) are, in fact, recognized components of an inclusive school security approach. It's essential to remember that security measures should be balanced with creating a welcoming and conducive learning environment.