the price of boards will increase the price of boards will decrease there will be more boards available there will be more trees for logging
I gave my students this multiple choice question: Logging companies cut trees in a forest and send the trees to lumber mills far from the forest. The mills make boards that are used for construction. Some logging companies do not plant tree seedlings after cutting trees. Not planting tree seedlings might affect people who need boards in the future because

Only one answer is correct among these 4 choices:
- the price of boards will increase
- the price of boards will decrease
- there will be more boards available
- there will be more trees for logging

Could you tell me which one is correct?

the price of boards will increase