单项选择题Asystemat192.100.45.17isabletoprinttotheprinter.However,anothersystemat192.100.50.23cannotprinttothesameprinter.AllofthefollowingshouldbeperformedEXCEPT:()
A. Increase the size of /var.
B. Check /etc/qconfig file.
C. Check the default route.
D. Check for name resolution.