Today Tania buys two securities on the bond market, maturing in 10 years.
- The Alpha bond costs $8,500 today, pays annual coupons of $100 per year (first  coupon in an exact year), and has a face value of $10,000.
- The Beta bond costs $7,500 today, pays no coupons and has a face value of  $10,000.
a)  Represent the timeline of Tania's investment over the next ten years.
b)  Calculate the NPV of Tania's investment considering an  annual discount rate of 2%.
c) Calculate the IRR of Tania's investment.