phrase "told me to MIND my own business"

[Bloodymir]

Business Idiom in English, Intermediate level

ESL/EFL Test #53 "Business Expressions (2)", question 5

He didn't hesitate to tell me that I wasn't wanted and just told me to ......... my own business.

(a) concern
(b) look after
(c) tend to
(d) mind

Business Idiom in English, Intermediate level

ESL/EFL Test #53 "Business Expressions (2)", answer 5

He didn't hesitate to tell me that I wasn't wanted and just told me to mind my own business.

Correct answer: (d) mind
_________________________

What is the difference between this two expressions?
1) ..."told me to MIND my own business"...
2) ..."told me to LOOK AFTER my own business"....

Bloodymir

[Mister Micawber]

.
#1 is the idiom.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mr. Micawber