Just as perceptions of fairness can impact customer WTP, a customer's perception of the reputation of the seller of a product or service can have an impact on his or her purchasing decisions.

Based on what you know about factors that determine WTP, which of the following is plausible?

a) Despite higher prices, shoppers in a local town prefer to shop at Joe's Groceries over chain supermarkets in order to support small businesses.

b) After reports of child labor in its factories abroad, a clothes manufacturer sees a decline in quarterly sales of 10%.

c) The stock price of BIG Inc., a large company, rises after its CEO decides to forgo a salary and increase the minimum company wage.

d) All of the above.