Close procurements is a process that involves

A) customer satisfaction analysis and final payment
B) administrative closure and archiving records
C) final contractor payment and lessons learned
D) product verification and administrative closure

根据我国《保险法》的规定，对属于保险责任但赔偿或给付保险金的数额不能够确定的索赔，保险人履行赔偿或给付义务的具体时限是（）。

A.60日

B.30日

C.20日

D.10日