The following program is submitted:
proc contents data=_all_;
Which statement best describes the output from the submitted program?
A. The output displays only a list of the SAS data sets that are contained in the WORK library.
B. The output displays only the contents of the SAS data sets that are contained in the WORK library.
C. The output displays only the variables in the SAS data sets that are contained in the WORK library.
D. The output displays a list of the SAS data sets that are contained in the WORK library and displays their contents.