How can you come out of the loop in this program?

#!/bin/bash
read x
while [ $x != "hello" ]
do 
echo "Try to come out of the loop"
read x
done
echo "Welcome"
exit 0

A. countw B. wcount C. wc D. count p E. None of the above

A. dm B. rm C. delete D. erase E. None of the above

A. rdir B. remove C. rd D. rmdir E. None of the above

A. x B. y C. a D. z E. None of the above