What is the output of this program?
#!/bin/bash
demo_var=hello
readonly demo_var
demo_var=hi
echo $demo_var
exit 0
#!/bin/bash
demo_var=hello
readonly demo_var
demo_var=hi
echo $demo_var
exit 0A. hello
B. hi
C. nothing will print
D. none of the mentioned
Answer: Option A
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