Today is 14th October 2021, Anne just bought a 270-day $100 000 bank bill for $98,300. She will sell this bank bill on 24 November 2021 at 2.28% p.a. (simple interest). a) What is the simple interest) purchase yield for her purchase (expressed as a percentage and rounded to three decimal places)? O a. 2.338% p.a. O b. 8.891% p.a. c. 15.396% p.a. O d. 3.507% p.a