What can Universal Containers do to address the issue without changing its integration?

Universal Containers has automated the process of creating new account records in Salesforce. All account records created through this process are owned by a generic user. There are now two million account records that have been created in this manner. Universal Containers is now seeing performance issues when it makes any changes to account sharing rules.

What can Universal Containers do to address the issue without changing its integration?
A . Ensure that the generic user has NOT been assigned to a role.
B . Ensure that the generic user has the Modify All Data permission.
C . Contact Salesforce support to add an index to the account object.
D . Set the organization-wide defaults for accounts to public read/write.

Answer: A