【单选题】
The local host on a small network is named Earth. There is also a remote host on the network named Saturn.  The system administrator of the network is in the /u/tmp directory of Earth， and starts an ftp to Saturn as root.  Which of the following sequence of commands issued from the local host， Earth， will：（）。 <br /> 1.Check to see if there is an a.out file on remote host Saturn.  <br /> 2.Change to the /u/new directory on Earth. <br /> 3.Transfer a.out from Earth to Saturn.
A、ls a.out cd /u/new put a.out
B、ls a.out cd /u/new get a.out
C、ls a.out lcd /u/new put a.out
D、ls a.out lcd /u/new get a.out
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