Universal Containers has two custom objects, Inspection__c and Building__c , that are not yet related.

Inspection__c must be the detail object and Building__c the master. Salesforce master-detail relationships create strong dependency between parent and child records: when a master record is deleted, its related detail records are cascade-deleted. Detail records also inherit record access from the master through the Controlled by Parent sharing model. Salesforce additionally specifies that the master-detail relationship field is created on the detail object. Therefore, the relationship field belongs on Inspection__c and references Building__c . A lookup relationship would leave Inspection records independently owned and would not provide the required cascade-delete and inherited-sharing behavior. Option B reverses the relationship direction and would incorrectly make Building the detail. Thus, D satisfies both lifecycle dependency and security inheritance requirements with the standard declarative Salesforce data model.

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