Answer:
Only the third selection is true.
Explanation:
Considering the information given, John catches 3 fish every two hours. Or, in other words, he catches 1.5 fish every hour. This alone eliminates the first option.
After 8 hours, assuming that John catches 1.5 fish every hour, that would mean he would catch 12 fish. This eliminates the second option.
The third option represents what we already know. 3/2 is 1.5. 3/2 fish per hour results in the number of fish John would catch.
Thus, only the third selection is true.