Final answer:
The main answer is that the statement provided is false. In a Master-Detail relationship on Salesforce, the sharing settings for the child record are inherited from the parent record and cannot be directly modified via OWD settings.
Step-by-step explanation:
The statement is false. While setting Organization-Wide Sharing (OWD) in Salesforce, the sharing settings for the child record in a Master-Detail relationship cannot be directly modified because the child's visibility is controlled by the parent record in this type of relationship. In a Master-Detail relationship, the detail (or child) record inherits its sharing and security settings from the master (or parent) record. If you need to control sharing of the child records independently from their parent records, a Lookup relationship may be more appropriate. However, changing from a Master-Detail to a Lookup relationship is a significant alteration and should be carefully considered in the context of the overall data model.