What does "catch-all" mean?

[Milla]

English Language Tests, Intermediate level

ESL/EFL Test #547 "English Slang Idioms (289)", question 1

"If you have a problem, you must go to your supervisor for resolution. On no ......... are you to ever go to the main manager with a problem unless the problem is with your supervisor," the trainer told the new employees.

(a) bill
(b) account
(c) catch-all
(d) credit

English Language Tests, Intermediate level

ESL/EFL Test #547 "English Slang Idioms (289)", answer 1

"If you have a problem, you must go to your supervisor for resolution. On no account are you to ever go to the main manager with a problem unless the problem is with your supervisor," the trainer told the new employees.

Correct answer: (b) account
_________________________

What does "catch-all" mean?

[Lost_Soul]

Catch all