Alan Patel Is a College Student Living Alone in a Campus

Alan Patel is a college student living alone in a campus apartment. He finished cooking dinner when his friends text him to join them at the dining hall on campus for dinner. He now has to decide whether to eat the dinner he prepared or walk to campus to meet his friends at the dining hall. Alan should consider all the following costs when making this decision EXCEPT the

A) time he spent cooking the dinner.
B) time it will take to walk, meet his friends, and walk back.
C) amount of money he will spend at the dining hall.
D) value he places on eating dinner with his friends.