第1题: [单项选择]An analyst does research about interest rate risk. The duration of a bond with $1000 face value is 4.5, and its current price is $990. Which of the following is the best estimate of the bond price change if interest rates increase by 3%() A. -$133.65 B. -$135.00 C. $133.65 参考答案:A 答案解析: