老师，四个选项分别如何解释

老师，这个题怎么解释

A $1000 par corporate bond carries a coupon rate of 6%, pays coupons semiannually, and has ten coupon payments remaining to maturity. Market rates are currently 5%. There are 90 days between settlement and the next coupon payment. The dirty and clean prices of the bond are closest to: A. 1043.76, 1013.76 B. 1043.76, 1028.76 C.1056.73, 1041.73 D.1069.7, 1054.7 在第10期贴现回去那段不太明白，PV=1043.76. 1043.76*1.025(1/2)=1056.73 为什么不是1043.76/1.025（1/2）呢？ 请老师解释下乘除号在这道题目里面的分别，谢谢

老师，这里为什么euro interest rate 是下降才是in the money

The standard VaR calculation for extension to multiple periods assumes that returns are serially uncorrelated. If prices display trends, the true VaR will be: A. The same as the standard VaR. B. Greater than the standard VaR. C. Less than the standard VaR. D. Unable to be determined. 没有想明白这道题，请老师再解释一下

par rate ，spot rate 和yield分别代表什么？

老师，可以解释下利率风险和在投资风险吗？callable和puttable bond在哪种情况下更容易行权？

请问这道题怎么做

incentive fee on return above flat fee的计算应该是哪个式子，为什么？ （1）期初的net asset value*（1+55%）*（1-2%）*20% （2）期初的net asset value*（1+55% - 2%）*20% 自我感觉从数学角度（1）更正确

如图黄色高亮部分何解