Concept:Ordinal utility measures satisfaction by ranking preferences rather than by assigning exact numerical values.
Explanation:In utility theory, there are two main ways to express consumer satisfaction.
Cardinal utility uses actual numbers to measure satisfaction.
Ordinal utility, on the other hand, only arranges choices in order of preference.
When a consumer says they prefer good X to good Y, that is a ranking.
No numerical value is attached to the level of satisfaction.
Therefore, ranking is the distinguishing method used for measuring ordinal utility.
Answer:B. ordinal utility