A bond has following characteristics: it was issued on 14.06.2018 and has 10 years to maturity. Coupon is paid semi-annually and carries interest rate of 3,2%. Market interest rate is currently 2,9% for similar issues. Investor purchased the bond on 19.11.2021. a. Calculate MacDuration b. Calculate ModDuration c. When market interest rates increase by 50 basis points, calculate price effect using results obtained in question (b)