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 it will take to go meet his friends and walk back.
B) amount of money he will spend at the dining hall.
C) money spent on the groceries he used to cook dinner.
D) value he places on not eating dinner alone.