At the highest level of total utility, marginal utility is

kolawol25

4 months ago

At the highest point of Total Utility, Marginal utility becomes zero.
This tells us that once a commodity is used up or finished, the satisfaction derived from such commodity becomes less or in this case, Zero.
Relatable example: You attain satisfaction (high marginal utility) once you start drinking a bottle of coke, by the time you have almost finished the coke(highest level of total utility) it gets to a point where you are completely satisfied and dont feel like drinking anymore(this is where marginal utility becomes 0)
Thus the answer is D

THIS PART IS JUST FOR ELABORTION ON THIS CONCEPT
But if you are given another bottle and still force yourself to drink,you realize that you cant finish it (then this is where total utility begins to fall from its highest point), And while this is ongoing, you gain even lesser satisfaction from the Coke (this is where marginal utility becomes negative).
Then your answer would be (A).
But not in this question