How many of the following statements violate the sunk cost principle? I. I want to stay until at least the 7th inning stretch so I can hear Cameron sing Take me Out to the Ball Game... II. I have to...

How many of the following statements violate the sunk cost principle?

I. I want to stay until at least the 7th inning stretch so I can hear Cameron sing Take me Out to the Ball Game...

II. I have to finish drinking this beer because I paid $8 for it!

III. I prefer to go to the bar rather than pay $ 100 for the only baseball tickets left, but since T drove this far to get here, I'll buy the expensive tickets.

IV. Since you are late getting here, the best thing to do is buy outfield tickets!

a. 0

b. 1

c. 2

d. 3