What output is produced by the following command sequence? echo ‘1 2 3 4 5 6’ | while read a b c; do echo result $c $b $a; done
A. result: 6 5 4
B. result: 1 2 3 4 5 6
C. result: 3 4 5 6 2 1
D. result: 6 5 4 3 2 1
E. result: 3 2 1
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