Base SAS 70

The SAS data set EMPLOYEE_INFO is listed below:
IDNumber Expenses
2542 100.00
3612 133.15
2198 234.34
2198 111.12
The following SAS program is submitted:
proc sort data = employee_info;

run;
Which one of the following BY statements completes the program and sorts the data sequentially by ascending expense values within
each ascending IDNUMBER value?
A. by Expenses IDNumber;
B. by IDNumber Expenses;
C. by ascending (IDNumber Expenses);
D. by ascending IDNumber ascending Expenses;
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