Suppose you are using the database composed of the two tables shown in Figure $1.$ Table Name: Director DIR$\_$NUM DIR$\_$LNAME DIR$\_$DOB $100$ Broadway $12-$Jan$-65101$ Hollywoody $18-$Nov$-53102$ Goofy $21-$Jun$-62$ Table Name: Play PLAY$\_$CODE PLAY$\_$NAME $1001$ Cat On a Cold, Bare Roof $1002$ Hold the Mayo, Pass the Bread $1003$ I Never Promised You Coffee $1004$ Silly Putty Goes To Washington $1005$ See No Sound, Hear No Sight $1006$ Starstruck in Biloxi $1007$ Stranger In Parrot Ice Figure $1$ Data tables DIR$\_$NUM $102101102100101102101$ Question A: Identify the primary keys. Question B: Identify the foreign keys. Question C: Create the entity relationship model.