Steve owns a store that caters primarily to men and their hobbies. He is contemplating greatly expanding the hunting and fishing section of the store. If he does this, he expects his fishing and hunting sales will increase, his camping gear sales will increase, and his model train sales will decrease. Which of the following should Steve include in his revenue projection for the expansion project?

I. increase in fishing and hunting sales II. increase in camping gear sales III. decrease in model train sales