暑厥形成，是由于（）

A.邪自肺卫，逆传心包

B.直中心包，暑闭清窍

C.邪自气分，内陷心营

D.暑湿酿痰，蒙蔽心包

E.包络痰热未净，机窍不利

Assume an option free 5 percent coupon bond with annual coupon payments has two years remaining to maturity. A putable bond that is the same in every respect as the option free bond is priced at 101.76. With the term structure flat at 6 percent what is the value of the embedded put option

A．

B．

C．