These shoes are _______. Could you look after _______ for_____? [ ]

A my, it, me  

B his, them, me  

C mine, them, me  

D theirs, them, it

编制营养食谱时，首先需要以各营养素的推荐摄入量RNI为依据确定需要量，通常以______需要量为基础。