Jane is trying to decide which courses to take next semester. She has narrowed down her choice to two courses, Econ 1 and Econ 2. Now she is having trouble and cannot decide which of the two courses to take. It's not that she is indifferent between the two courses, she just cannot decide. An economist would say that this is an example of preferences that

Answer: ... in incomplete

Explanation: Scale of preferences is a way of arranging preferences in the order of utility to an individual. Preferences are however are what we give to alternatives based on their relative utility. However, the individual is still expected to act in a rational way. In this scenario, preferences would be incomplete since "not being able to choose" is differenct from being indifferent between the two courses. If she has complete preferences, she would be able to make a rational choice.