Exam Sharing-and-Visibility-Architect Topic 3 Question 54 Discussion

Explanation
The recommended way for the architect to implement this is to create an AccountShare record associated to a public group containing the role. This way, the architect can use Apex Managed Sharing to share certain account records with all users who are assigned to a specific role in the role hierarchy. Creating an AccountShare record associated to a public group containing the users in the role is not possible because public groups can only contain users, roles, or other public groups, but not a combination of them. Creating an AccountShare record associated to each user who is assigned to the role is not efficient because it requires more sharing records and maintenance. Creating an AccountShare record associated to the required role is not valid because AccountShare records can only be associated to users or groups, not roles1