The correct answers are A. Review the Contact record and ensure it is linked to an Account, C. Verify the users with the issue have access to the Contact object, and E. Confirm whether Default Organization-Wide Sharing Settings provide access to the Account.
A Contact that is not linked to an Account is treated as a private contact. Salesforce states that contacts without an account are private regardless of the sharing model, so checking whether the Contact is associated with an Account is a valid troubleshooting step.
Users also need object-level access to the Contact object. Object permissions control whether users have base-level access such as read, create, edit, and delete for an object.
Finally, Contact visibility is often affected by Account access, especially when Contact sharing is controlled by the parent Account. Organization-Wide Defaults define the default record access users have for records they do not own, so checking the Account OWD is also correct.
B is incorrect because creating a new Contact does not troubleshoot the actual sharing/security issue.
D is incorrect because creating a broad Account Sharing Rule for all records is not the first troubleshooting step and may overexpose data.
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