What must be reported when a child is missing?

When a child is reported missing, it is crucial to immediately notify law enforcement and file a Missing Child Report. This is because law enforcement agencies have the resources and authority to conduct search and rescue operations, investigate disappearances, and coordinate with other agencies to maximize the chances of locating the child quickly and safely. The timely reporting of a missing child can significantly influence the outcomes of search efforts, so ensuring that the necessary authorities are involved right away is essential for the child's safety.

While the other options may contain relevant information that could assist in an investigation (such as the child's school or medical history), they do not capture the critical first step of engaging law enforcement, which is paramount in these situations.