Corey Has a Blue Sweater and a Denim Jacket

Multiple Choice

Corey has a blue sweater and a denim jacket. On some days he chooses to wear the sweater but on others he chooses to wear the jacket. Economists would most likely conclude that:

A) Corey's preferences have changed.
B) Corey's preferences have not changed, but other factors, such as the temperature outside, may have changed.
C) Corey is not acting rationally but rather considering the emotional impact of his choice.
D) Corey's preferences for wearing a jacket versus wearing a sweater are not defined.