Sierra Likes Chocolate-Covered Deviled Eggs

Multiple Choice

Sierra likes chocolate-covered deviled eggs. After eating 10 chocolate-covered deviled eggs, she switches to strawberry ice cream covered in sauerkraut. We can conclude that

A) the chocolate-covered deviled eggs made Sierra sick.
B) the chocolate-covered deviled eggs now have a negative marginal utility.
C) at this point, the chocolate-covered deviled eggs have a lower marginal utility per dollar spent than that of strawberry ice cream covered in sauerkraut.
D) Sierra is minimizing her utility.