Ethan Paid $3 for a Bottle of ThirstAid

Multiple Choice

Ethan paid $3 for a bottle of ThirstAid.Later,while on a hiking trip,he was offered $8 for the ThirstAid.Select the correct statement from the following:

A) The $8 offer is not relevant if Ethan refuses to sell the ThirstAid.
B) If Ethan drinks the ThirstAid, no opportunity cost is associated with his decision.
C) The $3 original purchase price is irrelevant to his decision to sell the ThirstAid.
D) All of these answers are correct.