What is the 1.5 year zero rate (also known as "spot rate") give that the information for the following .5 year, 1 year, and 1.5 year bonds: NOTE: The .5&1 year bonds are zero-coupon. The 1.5 year bond has a $5.00 coupon which is paid semi-annually (in 2 increments of $2.50, each six-months apart). HINT: You must solve recursively as shown in the lecture (first, you have to solve for the .5 year zero rate, then the 1 year zero rate, then the 1.5 year zero rate) 1.38% 2.28% 3.65% 4.15% 5.17%