Please answer question 8 thank you !

Today is 1 July 2021. Joan has a portfolio which consists of two different types of financial instruments (henceforth referred to as instrument A and instrument B). Joan purchased all instruments on 1 July 2019 to create this portfolio and this portfolio is composed of 298 units of instrument A and 303 units of instrument B. Instrument A is a zero-coupon bond with a face value of 100. This bond matures at par. The maturity date is 1 January 2030. Instrument B is a Treasury bond with a coupon rate of j2 = 3.19% p.a. and face value of 100. This bond matures at par. The maturity date is 1 January 2024. (b) Calculate the current price of instrument B per $100 face value (today's value). Round your answer to four decimal places. Assume the yield rate is j2 = 3.51% p.a. and Joan has just received the coupon payment. O a. 98.6786 O b. 100.8355 O c. 99.0963 d. 99.2405 Clear my choice Today is 1 July 2021. Joan has a portfolio which consists of two different types of financial instruments (henceforth referred to as instrument A and instrument B). Joan purchased all instruments on 1 July 2019 to create this portfolio and this portfolio is composed of 298 units of instrument A and 303 units of instrument B. Instrument A is a zero-coupon bond with a face value of 100. This bond matures at par. The maturity date is 1 January 2030. Instrument Bis a Treasury bond with a coupon rate of j2 = 3.19% p.a. and face value of 100. This bond matures at par. The maturity date is 1 January 2024. (c) What is the current duration of instrument B? Express your answer in terms of years and round your answer to three decimal places. Assume the yield rate is j2 = 3.51% p.a. O a. 5.768 b. 2.422 O c 2.884 O d. 4.845 Clear my choice Today is 1 July 2021. Joan has a portfolio which consists of two different types of financial instruments (henceforth referred to as instrument A and instrument B). Joan purchased all instruments on 1 July 2019 to create this portfolio and this portfolio is composed of 298 units of instrument A and 303 units of instrument B. Instrument A is a zero-coupon bond with a face value of 100. This bond matures at par. The maturity date is 1 January 2030. Instrument Bis a Treasury bond with a coupon rate of j2 = 3.19% p.a. and face value of 100. This bond matures at par. The maturity date is 1 January 2023. (d) Based on the price in part a and part b, and the duration value in partc calculate the current duration of Joan's portfolio. Express your answer in terms of years and round your answer to two decimal places. O a. 5.16 O b. 6.73 O c. 5.00 O d. 6.34