《中国药典》中维生素C的含量测定如下：取待测品约0.2g，精密称定，加新煮沸冷却的蒸馏水100ml与稀醋酸10ml，使之溶解，加淀粉指示剂1ml，立即用碘滴定液（0.1mol/L）滴定，至溶液显蓝色，并持续30秒不褪色。每毫升碘滴定液（0.1mol/L）相当于8.806mg的CHO。已知取样量为0.2084g，消耗0.09981mol/L的碘滴定液22.75ml。

本品的百分含量为（）

A.91.8%

B.93.6%

C.95.9%

D.96.1%

E.101.7%

F.102.3%

Cooper Corp. reports the following information about its common shares:
·Market price per share is $40
·Book value per share is $ 0
·20 million shares outstanding
·Earnings per share is $2.50
If Cooper Corp. repurchases two million shares at the market price, the book value per share after the repurchase is closest to:（）

A. $16.0

B. $17.8

C. $22.2