An operator needs to run a script which will write standard output and standard error to different files. Which of the following commands will successfully perform this task?（）
A、myscript.ksh 1>/tmp/log/script.log 2>/tmp/log/script.err
B、myscript.ksh $1>/tmp/log/script.log $2>/tmp/log/script.err
C、myscript.ksh 1>/tmp/log/script.log 2>1 /tmp/log/script/err
D、myscript.ksh 2>1 /tmp/log/script.log 2> /tmp/log/script.err
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