What can a system administrator do to fulfill the requirement?

A Recruiting User needs to setup an object relationship between the Position Object and the Job Application Object. He needs this setup so that a Position record can be related to many Job Application records and Job Application Records can be related to many Position Records. He also needs this in a setup where deleting a Position record will delete all related Job Application records and deleting a Job Application record deletes all related Position records.

What can a system administrator do to fulfill the requirement?
A . Create a lookup relationship on both objects.
B . Create two master-detail relationships where both can be master and both can be detail records
C . Create a junction object between the Job Application and Position object.

Answer: C