Which one of the following is the best example of a sunk cost? Question 11 options: 1) Angelo's decided to accept project A rather than project B. 2) Burt's spent $18,000 last year patching potholes in its parking lot caused by a severe winter frost. 3) Lester's added desserts to its menu which caused its sandwich sales to increase. 4) A new fish sandwich was added to a menu and as a result hamburger sales declined.