Exam Certified Sharing and Visibility Architect topic 1 question 95 discussion

The sales rep will have implicit read only access, C

A is correct because the OWD for the Account object is set to Private. This means that, by default, only the owner of the Account record or users explicitly granted access through sharing rules, manual sharing, or role hierarchy will be able to see that Account Ownership of an opportunity does not automatically grant the owner any access to the related Account record. The access to the Account itself is governed by the OWD setting for Account, not by the Opportunity ownership.