Which of the following functions extracts the year from a SAS date?

The function that extracts the year from a SAS date is the YEAR function. This function is specifically designed to take a SAS date value as input and return the corresponding year as a numeric value. When you utilize this function, it interprets the SAS date (which represents the number of days since January 1, 1960) and converts it to the appropriate year, which makes it highly useful for date manipulation and analysis in SAS programming.

In contrast, the other functions serve different purposes: MONTH extracts the month from a SAS date; QTR returns the quarter of the year (1 to 4) for a given SAS date; and WEEKDAY identifies the day of the week (1 for Sunday through 7 for Saturday). Each function has its specific utility but does not provide the year information directly. Thus, the YEAR function is uniquely suited for extracting the year component from a SAS date.