Which of the Following Are Requirements in Order to Run

Multiple Choice

Which of the following are requirements in order to run a shell script like a regular command from anywhere in the filesystem? (Choose THREE correct choices.)

A) The user issuing the command must be in the group script.
B) The script file must be found in the $PATH.
C) The script file must have the executable permission bit set.
D) The script must begin with a shebang-line (#!) that points to the correct interpreter.
E) The file system on which the script resides must be mounted with the option scripts.