Answer:
1.
statistics on how many salmon are taken each season
Step-by-step explanation:
Think about how relevant to the question each answer is. How much salmon is taken each season plays into how much is sold, so it's related to economic effects. #2 is kind of relevant but not as much I think. #3 and #3 are not close at all to what the question is asking about salmon and money.
I hope this helps you :)