Assumption I: "You have financial difficulties."
The speaker says "if" you have financial difficulties, which indicates a hypothetical situation.
It does not assume that you already have financial difficulties, so this assumption is not implicit.
Assumption II: "Promise to provide you financial help."
The speaker is offering help in the event of financial difficulties, which implies a promise or willingness to provide financial assistance.This assumption is implicit.
The correct answer is (B): If assumption II is implicit.