What should the Administrator do to accomplish this task?

Universal Containers has a private sharing model on Opportunities. The System Administrator has been asked to create a new custom object that will track customer payment information and will link to the Opportunity. Only those users with access to the Opportunity should be able to see the records on the new object.

What should the Administrator do to accomplish this task?
A . Create a Master -Detail relationship with a Criteria Based Sharing Rule. Calculator
B . Create a Master -Detail relationship with Profile permissions.
C . Create a Lookup relationship with a Criteria Based Sharing Rule.
D . Create a Lookup relationship with Profile permissions.

Answer: A