The SQL statement that equivalent the following relational algebra expression is (OSalary > 2000 (EMP x Odname='DI DEPT)) a. select salary, dname from EMP, DEPT where salary>2000 and ;'dname='D1 b. select salary, dname from EMP, DEPT where salary>2000 or ;'dname='D1 c. select * from EMP, DEPT where ;'salary>2000 or dname='D1 d. select * from DEPT, EMP where ;'salary>2000 and dname='D1