2) Using marginal utility theory, when the price of a gallon of milk falls, a consumer will buy A) more milk only if its marginal utility is increasing. B) more milk only if its marginal utility is constant. C) the same amount of milk as before and buy more of all other goods. D) more milk. 3) The cost of basics like milk, bread, potatoes and bananas has jumped in the past year, forcing families to nix luxuries, steer away from organic goods and buy more house brands. I think its affecting everybody, said Elize Joseph 48, a nursing attendant. To spend $40 on groceries is nothing. It doesnt go a long way. When food prices increase, what will happen to Elizes total utility? A) It decreases B) It increases C) It stays the same D) It cannot determine without knowing her total income