Which is a valid LIBNAME statement?
A. libname “_SAS_data_library_location_”;
B. sasdata libname “_SAS_data_library_location_”;
C. libname sasdata “_SAS_data_library_location_”;
D. libname sasdata sas “_SAS_data_library_location_”;
Answer: C
注解：正确格式为：LIBNAME libref ‘文件路径’。