You are looking at two 10-year bonds. Bond A is a zero-coupon bond, and Bond B pays an 8% annual coupon. Yields for both just spiked by 100 basis points. Which bond’s price drops more in percentage terms, and why?

你正在比较两只10年期债券：A是零息债券，B每年支付8%的票息。两者的收益率刚刚都飙升了100个基点。哪只债券的价格按百分比下跌得更多？为什么？