Question 3. Human Capital Investment Decisions (Benjamin et al., Chapter 9] a} In a few sentences:{1) describe the key similarities between physical capital and human capital; {2} explain the importance of human capital: and [3] give at least two examples of sources of human capital. b} Joe has just nished high school. He has three periods of time left in his working life. and is considering three career options: - Obtain a job in a hotel, earning $20,000 per year for each of the remaining three periods of his working life. - Attend community college, earning a diploma in human resources. The diploma takes one period to complete. with tuition fees equal to $5.000. After graduation. he will earn $50,000 per year for the remaining two periods of his life. - Attend university to obtain his Ph.Ei. in art history. The degree takes two periods to complete, with tuition fees of $10,000 per period. After graduation. he will earn $00,000 per year for the one remaining period of his working life. Assuming an interest rate of 10% per period, which career path should he follow? Do not use the formula for approximating the present value. You will need to use a calculator for this problem. but please show all your work {calculations}