Last week, jorge purchased a $45 ticket to a soccer game scheduled for this Thursday. If he attends the game, he'll miss three hours of work, where he's paid $15per hour. While he can't return the ticket, he can resell it online for $30. Attending the game is worth $100 to him. Based on this information, which of the following is true?
A. the opportunity cost of attending is $75.
B. the opportunity cost of attending is $25.
C. the opportunity cost of attending is $105.
D. the opportunity cost of attending is $45.