Answer: a. I, II and III are true
Explanation:
From the question, the statements that are true are:
I. 4% is the desired real rate of interest. II. 6% is the approximate nominal rate of interest required.
III. 2% is the expected inflation rate over the period.
4% is the desired real rate of interest because that's the rate at which the investor is willing to buy the goods in future.
2% is the expected inflation rate over the period because at that rate, there's expectation of future rise in price while 6% is the approximate nominal rate of interest required which is the addition of the 4% and the 2%.
