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 answers.)

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

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Answer: B,C,D