2. Circle the answer that would maximize your profit from trading a bond.

a. Buy a 5-year bond when the yield is low and sell when its yield is high

b. Buy a 30-year bond when the yield is high and sell when its yield is low

c. Buy a 30-year bond when the yield is low and sell when its yield is high

d. Buy a 5-year bond when the yield is high and sell when its yield is low