帮忙解是一道语法，谢谢！

sunnyfields

The sale of government surplus machinery will begin at 9 a.m. and continue until the supply lasts.

A	will begin at 9 a.m. and continue until the supply lasts
B	begins at 9 a.m., continuing until the supply lasts
C	will begin at 9 a.m. and, until the supply lasts, will continue
D	begins at 9 a.m. and, as long as the supply may last, it continues
E	will begin at 9 a.m. and continue as long as the supply lasts

automobiler

A.the use of until  is illogical.

B. will is omited,continuing is wrong,the use of until  is illogical.

C.the use of until  is illogical.

D.the referent of it is unclear,the use of may is illogical.

E.correct

sunnyfields

谢谢!!!!