Meaning of 'part company with you'

[richard]

Business Idiom in English, Intermediate level

ESL/EFL Test #138 "Ways of disagreeing", question 1

I'll have to ......... company with you there, I'm afraid.

(a) separate
(b) divide
(c) part
(d) leave

Business Idiom in English, Intermediate level

ESL/EFL Test #138 "Ways of disagreeing", answer 1

I'll have to part company with you there, I'm afraid.

Correct answer: (c) part

Your answer was: ?
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part company with you

[Mister Micawber]

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Yes, to part company = to go one's separate way; to disagree about something.
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Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber