A company invests $1,000 in a five-year zero-coupon bond and $4,000 in a ten-year zero-coupon bond. What is the duration of the portfolio? a. 8.5 years b. 8 years c. 9 years d. 9.5 years e. 7.5 years Consider an exchange traded put optics to sell 100 shares for $20. Give (a) the strike price and (b)the number of shares that can be sold after a 25% stock dividend. a. 16; 125 b. 8; 200 c. 8; 125 d. 16; 250 e. 32; 250