水肿湿热壅盛的治法是（）。

A.健脾化湿，通阳利水

B.宣肺解毒，利尿消肿

C.温蕴脾阳，以利水湿

D.分利湿热

E.疏风清热，宣肺行水

When travelling, you are advised to take travellers' checks, which provide a secure ______ to carrying your money in cash.

A．substitute

B．selection

C．preference

D．alternative