Starbucks is selling for $105 a share. A Starbucks call option with one month until expiration and an exercise price of $118 sells for $2.50 while a put with the same strike and expiration sells for $15.10. a. The market price of a zero-coupon bond with face value $118 and 1- month maturity is $ ________ b. The risk-free interest rate expressed as an effective annual yield is _____ %.