Map the following ER diagrams into the most efficient relational database schema: (0, N) Employee (1,1) has Dependent ssn Ename frame Bdate Select a O a. Employee (ssn, ename), Dependent (fname, Bdate) O b. Employee (ssn, ename), Dependent (fname, Bdate, employee_ssn) O c. Employee (ssn, ename), Dependent (fname, Bdate), has (employee_ssn, dependent fname) O d. Employee (ssn, ename, dependent_fname), Dependent (fname, Bdate) Given this table and the query: EMPLOYEE Fname Minit John Franklin 5 Alicia T J S Jennier Lname Bdate Address Sex | Salary | Super San Dno Smith 123456789 1965-01-09 731 Fondren, Houston, TX M 30000 333445555 Wong 333445555 1955-12-08 638 Voss, Houston, TX M 40000 888665555 Zelaya 999887777 1968-01-19 3321 Castle, Spring, TX 25000 987654321 Wallace 987654321 1941-06-20 291 Berry, Bellaire, TX F 43000888665555 Narayan | 666884444 1962-09-15 975 Fire Oak. Humble, TX M 38000 933445555 5 English 453453453 1972-07-31 5831 Rice, Houston, TX 25000 333445555 TODOS 980 Dallas, Houston, TX M 25000 987654321 Borg 888665555 | 1937-11-10 450 Stone, Houston, TX M 55000 NULL Ramesh Joy 5 Aha I Sex, Salary (o Sex="F" (EMPLOYEE)) How many rows are returned? Select one: O a. 8 b. 10 c. 3 O d. 2