Answer: Option 'E' is correct.
Step-by-step explanation:
Marginal utility is the addition utility derived from each successive unit of a particular good.
so, marginal utility is the change in utility from consuming an addition unit of a good or service.
Mathematically, it is expressed as
[tex]MU=\dfrac{\Delta TU}{\Delta Q}[/tex]
Hence, Option 'E' is correct.