1- According to the principle of rational choice, if there is diminishing marginal utility:

A) and the price received for supplying a good goes up, you supply less of that good.

B) and the price received for supplying a good goes up, you supply more of that good.

C) the decision producers face about how much to supply is not affected.

D) after a certain point, even if the price goes up, you don't supply more of that good.