How to implement CRUD for the table with foreign key

Question

For example: I have 3 tables.

1) Table A ( AId, AName, ADescription )

2) Table B (BId, BName, BDescription )

3) Table C (CId, AId, BId, CName, CDescription )

 

I want to add record for Table C and how can I control for A and B?

I am using entity framework and MVC5.

 

Kindly let me know if anyone to implement CRUD for Table C.

Thanks a lot for viewing my question.