Katie Just Finished a Bottle of Coke

Multiple Choice

Katie just finished a bottle of Coke.Using the concept of marginal utility,we can say:

A) the utility she will gain if she drinks another will reduce her total utility.
B) the utility she will gain if she drinks another might reduce her total utility.
C) the utility she will gain if she drinks another will be the same as that of her first.
D) None of these is necessarily true.