They are leaving for Hangzhou in ten days-________, next Friday. [ ]

A. in other words  

B. in many ways

C. on the whole  

D. on the contrary

某投资者以每份920元认购了面值1000元、票面利率6％，每年付息的5年期债券，一年后，到期收益率变为7％，则该投资者的持有期收益率为（）

A.7％

B.11.54％

C.8％

D.10.26％