"Congress added prescription-drug coverage to Medicare" most probably means that the Congress of the USA decided to ______.

A．add prescription-drugs to the Medicare program

B．allow the Medicare program to provide refunding subsidies to selected medicines to be purchased by Medicare members

C．increase payment to Medicare for refunding Americans buying prescription medicines

D．provide insurance to prescription drags purchased by Medicare participants

若确诊为宫颈腺癌，其临床分期为：

A．Ⅱa期

B．Ⅱb期

C．Ⅲa期

D．Ⅲb期

E．Ⅳa期