4. (Related to Checkpoint 5.2) (Future value) You have just introduced "must have" headphones for the iPod Sales of the new product are expected to be 10,000 units this year and are expected to increase by 21 percent per year the future. What are expected sales during each of the next three years? Graph this sales trend and explain why the number of additional units sold increases every year. a. If the 10,000 units of sales this year were expected to increase by 21 percent per year, what are the expected sales of the new headphone next year? units (Round to the nearest whole number.) b. If the 10,000 units of sales this year were expected to increase by 21 percent per year, what are the expected sales of the new headphone in two years? units (Round to the nearest whole number.) c. If the 10,000 units of sales this year were expected to increase by 21 percent per year, what are the expected sales of the new headphone in three years? units (Round to the nearest whole number.) d. The following graph shows the sales trend for the next three years. 19000- 17000- 15000 Headphone Sales 13000- 11000- 9000+ Years How does compound growth affect the sales trend? (Select the best choice below.) O A. The sales trend is linear with the same increase in sales each year. OB. The sales trend is nonlinear with accelerating sales due to the compound growth in the sales. O C. The sales trend is linear with decreasing sales due to the compound growth in the sales. OD. The sales trend is nonlinear with decreasing sales due to the compound growth in the sales