Aw computing uses a private sharing model for cases. a select group of five users need read/write access to all cases with a specific record type. of these users, one is assigned the support manager profile and four are assigned the support representative profile. how can the administrator meet this requirement?

a. create a public group for the users and a custom parent case record with the record type; share this case by record owner.
b. create a public group for the users and use criteria-based sharing rules to share cases with the record type to that group.
c. modify the support manager and support representative profiles to view all data access on all cases with the record type.
d. create a new profile for the five users with view all data access; remove access to the record type from all other profiles.