【单选题】Almost without interference, he has been able to continue threatening, challenging and harassing his competitors, and thus, wholly______, he has spouted more______of acerbic spirit.
【简答题】Bond 1 has an effective duration of 3.7. If the bond yield changes by 100 basis points, the price of the bond will change by: A. approximately 0.37%. B. approximately 3.7%. C. exactly 0.37%.