下列哪项不是麦冬的适应症（）

A.肺阴不足或燥热之干咳痰粘、劳热咳嗽

B.胃阴虚或热伤胃阴之口渴咽干

C.热病伤津，肠燥便秘

D.肾阴不足，阴虚火旺之潮热盗汗

E.心阴虚或热扰心营之心烦不眠

An investor has the following choices available: She can buy a 10 percent semi annual coupon, 10-year bond for $1000. She can reinvest the coupons at 12 percent. She can sell the bond in three years at an estimated price of $ 1050. Based on this information, the average annual rate of return over the three years is:

A．

B．

C．