Statement: An advertisement: "Our shoes are for the rich."
Assumptions:
1. Many people like to be labelled as rich.
2. One can't become rich unless one has that brand of shoes.
Answer: A
The statement stresses on the point that this particular brand of shoes is worn by affluent and upper-class people as they are good-quality shoes. And an advertisement highlights the feature which most people desire. So, I is implicit. But it doesn't mean that one has to have those shoes to be called 'rich'. So, II is not implicit.