Emma is trying to decide whether to buy a new laptop. as a student, she has a budget and wants to make sure this is the right financial decision. which question should she ask herself in determining the opportunity cost of this purchase?
a) what will i have to sacrifice if i buy this laptop?
b) can i use credit to buy this laptop?
c) do i need this laptop for my studies?
d) is there a less costly alternative to buying this laptop?

An attorney came to work on a saturday. when he signed in, he was advised by the morning security guard employed by the building management that he must be out of the building by 5 p.m., when it closes. however, he stayed past 5 p.m. to complete a brief that had to be filed on monday morning. at 5: 15 p.m., the afternoon security guard set the locks on all the doors of the building and left. because she was in a hurry, she did not check the sign-in sheet to make sure that everyone had signed out, contrary to mandatory procedures. when the attorney tried to exit 15 minutes later, he discovered that the doors were all locked and could not be opened from the inside. he used his cell phone to call for , and a supervisor from the building arrived and let him out shortly thereafter. if the attorney sues the building management for false imprisonment, is he likely to win?