A.Theuserjsmithcanuser-commandsfromanyservertoserverAlphasystem-wide
B.Theuserjsmithcanuser-commandsfromserverAlphatoanyserversystem-wide
C.Theuserjsmithcanuser-commandsfromserverAlphatoanyserverwitha\/home\/jsmithdirectory
D.Theuserjsmithcanuser-commandsfromanyservertoserverAlphaonlyinthe\/home\/jsmithdirectory
参考答案：A
