Research by tarp worldwide, inc. found that a full 96 percent of customers who report being "very satisfied" (i. e., they are in the "top box" in satisfaction) say they will "definitely repurchase" from the same company.
what she means is that back then a dollar (or less) could buy a lot more then because of the former state of deflation. since then a price inflation has occured.
i think the answer would be either a or d
if the demand is higher than the supply then the price goes up, and if you have a high supply and a low demand then the price goes down