Answer:
c. only compare year-to-date data
Step-by-step explanation:
The year to date data refer to the time period that starts from the first day of the present calender year or fiscal year to the present date. It is useful to analyze and interpret the data in order to see the trends of the business over the time also at the same time it compared the performance with that of competitors or the peers who deals in same industry
Therefore the option c is correct