Answer: Regulation Z
Step-by-step explanation:
Regulation Z is meant to protect customers by requiring that those in the lending industry avoid practices that are misleading to consumers such that the true cost of financing is hidden thus leading the consumer to believe that the cost of financing is lower than it actually is.
The real estate that was advertised with financing option that requires only a 5% down payment is most likely hiding other costs inveigled in the transaction in order to lure customers in after which they will reveal the true cost and the customer will have to pay and this is what Regulation Z aims to counter.