Jenny has few friends here, ____? (A) doesn't Jenny (B) does she (C) doesn't she (D) has she
I think option A is wrong.
The given answer is option B because few is negative. Do you agree?
Is option D acceptable in British English?
Options B/D would only be correct if the speaker were challenging a previous statement.
Steve: Jenny has few friends here.
John: Oh, Jenny has few friends here, does/has she? What nonsense. Everyone loves her.
To clarify, Option A is completely wrong, B and D could only be used in one specific context (above), leaving C as the only likely answer they are looking for as I believe it's what you would hear from the majority of native speakers. It remains a poor question.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.