The old man, Santiago, had not caught a fish in 84 days do to his crave of catching a much larger fish, the marlin. He is very old but a very experienced fisherman so therefore he has a lot of talent and a lot of wisdom to catch the marlin. Santiago catches the marlin and to his pleasure he eats off of this large fish for many days.
Answer:
set up (an organization, system, or set of rules) on a firm or permanent basis.
I would say the correct answer is that has an undetermined answer.
If a subject has been thoroughly covered, then there is no need for this researcher to do it all over again. If it's impossible to answer, there is no need to try. If it can be answered easily, then it doesn't really require a research. This leaves us with the last option, because a researcher might want to try and determine the answer.
