What is the output of this program?

#!/bin/bash
var[1]=hello_1
var[2]=hello_2
var[3]=hello_3
echo ${var[*]}
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