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單項選擇題

Given the following scripts, what output would be generated()
usr/local/bin/scriptl   
#!/usr/bin/ksh   
VARl=red   
export VARl=green   
VARl=blue   
/usr/local/bin/script2   
ARl=yellow  
/usr/local/bin/script2    
#!/bin/ksh  
echo "The sky is ${VAR1}."

A.The sky is red.
B.The sky is blue.
C.The sky is green.
D.The sky is yellow.

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