3 Q1) Given the following Company Database, answer questions 1.a & 1.b (16 Points) EMPLOYEE JOB EmployeeCode EmployeeLastName JobCode JobCode Job Description 14 Rudell 2 1 Clerical 15 McDade 1 2 Technical 16 Ruellardo 1 3 Managerial 17 Smith 20 Smith 2 ENROLLMENT EmployeeCode PlanCode PLAN 15 2 PlanCode PlanDescription 15 3 1 Term life 16 1 2 Stock purchase 17 1 3 Long-term disability 17 3 4 Dental 17 4 20 3 a) Identify the primary key and the foreign key(s). If a table does not have a foreign key, write None in the space provided Primary Key Foreign Key(S) Table EMPLOYEE JOB PLAN ENROLLMENT b) Do the tables exhibit referential integrity? Answer yes or no, and then explain your answer. If Yes, Why? Otherwise write NA Table EMPLOYEE JOB PLAN ENROLLMENT