Suppose That,when You Arrive at the Sale Site for $50

Suppose that,when you arrive at the sale site for $50 Apple laptops (described in the text) at 1:45 A.M.,you find more than 2,000 people already waiting for the site to open.You turn around and go home to get some sleep.Later you buy an Apple laptop,the same model as the $50 one,for $1,070.This indicates that ________.

A) more than fifty people in the crowd were physically stronger than you
B) you are willing to pay at most $1,070 for the laptop
C) your opportunity cost of waiting at the site (and pushing and shoving) is at most $1,020
D) your opportunity cost of waiting at the site (and pushing and shoving) is at least $1,020