I'M quite willing to help and________-.A So are the othersB the others are soC so do the othersD the others do

I'M quite willing to help and________-.A So are the othersB the others are soC so do the othersD the others do
I'M quite willing to help and________-.
A So are the others
B the others are so
C so do the others
D the others do

I'M quite willing to help and________-.A So are the othersB the others are soC so do the othersD the others do
A.
本题考“肯定呼应”；前面是be动词“am”,所以后面也用“be”动词“are”呼应!