If the nominal value of a debt is 6,000 dinars due to be repaid after 15 years, and if the discount rate prevailing in the market is 4%, then the present value of the debt is Select one: O a. 3231.59 O b. 3431.59 O c. 3331.59 O d. 3531.59 What is the period at the end of which the sum of 50 000 to 67 004.8 dinars is devolved, if the interest is added at the end of each year, at a rate of 5% annually . O b. 6 O c. 5 O d. 4