Answer:
The correct answer is option C.
Step-by-step explanation:
In the fourth paragraph, the information the author uses to support his idea is that no matter how difficult the fishing is, the important thing is the dedication and perseverance that is needed to succeed.
He states that the true fisherman is not the one who only wants to fish when he knows that a fish is going to bite the hook, but the one who, despite not catching anything, takes all his time to return the next day, using every detail to make his fishing successful.