[12] Convert the following ER diagram into a relational schema. In relational schema, please identify primary keys, all the attributes, and foreign keys (please use an arrow to represent the foreign keys). (2 points) Sec ID SSN Name S ID name 1,N 0,4 1,1 # of Students Student Section teach Professor O,N 1,1 1,N Phone# Grade Chair Belong ave 1,N 1,1 Major 0,1 1,1 Course Department D ID C ID Title