You are looking into a new script you received from your senior administrator. In the very first line you notice a #! followed by a path to a binary.

The shell will …

A.
ignore the script

B.
use that binary to interpret the script

C.
use that binary to compile the script

D.
be replaced by that binary

Explanation:
put #! /bin/bash in the first line of a shell script to execute it in a bash environment.