7. *Suppose Remus decides to go fishing at Lake Pescaccio on his day off from work, but he faces a choice: he can fish the east, south, or west side of the lake. His expected catch for the day is as follows: 3 fish on the east side, 7 fish on the south side, or 5 fish on the west side. Everything else held constant, Remus' opportunity cost of fishing the south side of the lake is _____ fish.

1.-1

2.2

3.3

4.4

5.5

6.7

7.8