关于basis swap的描述哪个正确（）。

A.两个基于不同本金额计算的利息现金流的互换

B.两个不同货币的利息现金流的互换

C.基于两个不同的市场指数计算的利息现金流的互换

D.有不同到期日的掉期

______ that many animals seem to be highly sensitive to various signals associated with earthquakes, the basic question remains of how this behavior can be put to use in earthquake prediction.

A．Granted

B．Provided

C．Considering

D．Assuming