The Main Difference Between Marginal Utility and Total Utility Is

The main difference between marginal utility and total utility is that

A) marginal utility looks at the satisfaction of the total bundle of goods, and total utility looks at the total quantity consumed.
B) marginal utility looks at the satisfaction of an additional unit consumed, while total utility looks at the satisfaction from the total quantity consumed.
C) total utility looks at societal satisfaction, while marginal utility looks at the satisfaction of an individual person.
D) consumers maximize marginal utility only.