I know a man who has a coin which is worth several___dollars.A.thousand B.thousands C.thousands of D.thousabg of

I know a man who has a coin which is worth several___dollars.
A.thousand B.thousands C.thousands of D.thousabg of

选A
因为several thousand 表示几千.
如,one thousand dollars
two thousand dollars
thousands of dollars 表示数以千计的,
前面不能加数词,或修饰.