Which of the following statements is correct? a. other things held constant, an increase in the number of discounting periods per year increases thepresent value of a given annual annuity. b. other things held constant, an increase in the number of discounting periods per year increases thepresent value of a lump sum to be received in the future. c. the payment made each period under an amortized loan is constant, and it consists of some interest andsome principal. the later we are in the loan's life, the smaller the interest portion of the payment. d. there is an inverse relationship between the present value interest factor of an annuity and the futurevalue interest factor of an annuity, (i. e., one is the reciprocal of the other).c. the payment made each period under an amortized loan is constant, and it consists of some interest andsome principal. the later we are in the loan's life, the smaller the interest portion of the payment.

"in the electricity industry, low average total costs are obtained only through large-scale production. in other words, the initial cost of setting up all the necessary wiring makes it risky and, most likely, unprofitable for competitors to enter the market. throughout much of the 20th century, many people viewed south africa’s de beers group as a monopoly because it controlled a large percentage of diamond production and sales. patents are granted to inventors of a product or process for a certain number of years. the reason for this is to encourage innovation in the economy. without the existence of patents, it is argued, research and development for improved electronics is unlikely to take place, since there’s nothing preventing another firm from stealing the idea, copying the product, and producing it without incurring the devel opment costs."which of the following best explains the barriers to entry that exist in this scenario? increasing returns to scale legal barriers exclusive ownership of a necessary resource