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Anadministratorneedstoaddthe/usr/vac/bindirectorytotheirPATHenvironmentvariableforthecurrentsession.Whichofthefollowingwillaccomplishthistask()
A.path=$path:/usr/vac/bin;exportpath
B.path.=/usr/vac/bin;export$path
C.Modifythe pathenvironmentvariablein/etc/profile
D.Modifythepathenvironmentvariablein/.profile
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