Using what you learned from Chapter 3: The Level and Structure of Interest Rate, answer the following questions. Using the bond demand and supply explained in Chapter 3, what's the potential impact of the expansionary open market operation (central bank buys bonds)? 1) decreasing the bond supply 2) increasing the bond price 3) decreasing the bond price 4) increasing the interest rate Group of answer choices [A] 1 and 2 [B] 1 and 3 [C] 2 and 3 [D] 3 and 4