狭义的统计法指（）

A.《中华人民共和国统计法》

B.《中华人民共和国统计法实施细则》

C.《中华人民共和国统计法》及其实施细则

D.《全国经济普查条例》

The parents have devoted themselves to bringing up their children and now it is time for the children, ______, to show their devotion to their parents.  [ ]

A. in their turn    

B. in their return  

C. in return  

D. in their turns