It is often said,railway is to transportaion……blood is to a man s body.A.asB.whatC.thatD.which请大神帮帮看看选哪一个并说明原因好不啦?

It is often said,railway is to transportaion……blood is to a man s body.A.asB.whatC.thatD.which请大神帮帮看看选哪一个并说明原因好不啦?
It is often said,railway is to transportaion……blood is to a man s body.
A.as
B.what
C.that
D.which
请大神帮帮看看选哪一个并说明原因好不啦?

It is often said,railway is to transportaion……blood is to a man s body.A.asB.whatC.thatD.which请大神帮帮看看选哪一个并说明原因好不啦?
B
“A之于B犹如C之于D”.的翻译：
第一种,“what C is to D,that A is to B” 第二种,“A is to B what C is to D”