Answer:
c. give the company a competitive advantage
Step-by-step explanation:
If a company manages to sustainably harvest rainforest products and it uses it for its promotion, then the reason for that is so that it can get competitive advantage. This would definitely help the company sell more products and draw more attention as the concerns about the environment are ever growing, and more and more people want to protect. By showing that what the nature offers can be used without causing destruction, lot of people will be drawn to this company's products so the company will experience a growth in the demand for its products.