|A) If only assumption I is Implicit||B) If only assumption II is Implicit|
|C) If either I or II is Implicit||D) If both I and II are Implicit|
I is implicit in the norm prescribed in the sentence. This is why checking is being advised. Again, what would the banks check? Obviously what the clients reveal. Banks would assume the revelation to be true.Hence II is not implicit. However, II is vague. If cross - checking is what the speaker has in mind, II would become implicit.