Which query finds the ID, Job_Title and Salary of all employees who make more than the average of all employees? partial staff ID Job_Title Salary 001 Director $163,040 046 Sales Manager $108,255 074 Office Assistant $36,256 085 Service Assistant $29,147 a. select ID, Job_Title, Salary from staff where Salary > (mean(Salary)); b. select ID, Job_Title, Salary from staffwhere Salary > (select mean(Salary)); c. select ID, Job_Title, Salary from staff where Salary > (select mean(Salary) from staff)