An administrator needs to create a one-to-many relationship between two objects with limited access to child records. What type of field should the administrator use?

A cross-object formula field is used to display data from a related object, not to define the relationship type or security model between objects.

A roll-up summary field aggregates data from child records onto a parent record and requires an existing master-detail relationship, but it does not define the relationship itself.

A lookup field creates a loosely coupled one-to-many relationship where child records have independent security and can exist without the parent, thus not inherently providing limited access to child records through the parent.

A master-detail relationship creates a tightly coupled one-to-many relationship between two objects, where the detail (child) record's security and sharing settings are inherited from its master (parent) record. This inheritance effectively limits access to the child records based on the parent's access permissions, ensuring data integrity and controlled visibility.