单选题 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

【正确答案】 A
【答案解析】[解析] -4.5×0.03×$990=-$133.65。