关于虚拟语气有点不明白...( ) he( )hard in those days,he ( ) so much pro

关于虚拟语气有点不明白...
( ) he( )hard in those days,he ( ) so much progress now.
A.If; didn't train; couldn't make
B.Had; not trained; couldn't make
C.Had; not trained; couldn't have made
D.Hadn't; trained; wouldn't have made
但我想说的是,题目中有“now”,不是说与现在情况相反吗?那与现在情况相反从句就是用过去分词did,主句用would/could+动词原型do,那就是选B咯,为什么又要选C,C不是与过去情况相反的那种类型吗?
..不好意思，我认为题目是选A的，上面说错了选B...