The SAS data sets WORK.EMPLOYEE and WORK.SALARY are listed below:WORK.EMPLOYEE WORK.SALARYfname age fname salaryBruce 30 Bruce 25000Dan 40 Bruce 35000Dan 25000The following SAS program is submitted:data work.empdata;merge work.employeework.salary;by fname;totsal + salary;run;How many variables are output to the WORK.EMPDATA data set?A. 3B. 4C. 5D. No variables are output to the data set as the program fails to execute due to errors.
