--Did you close the door?--Yes.I remember__it.A to closeB to closingC closingD closed

--Did you close the door?--Yes.I remember__it.A to closeB to closingC closingD closed
--Did you close the door?--Yes.I remember__it.
A to close
B to closing
C closing
D closed

--Did you close the door?--Yes.I remember__it.A to closeB to closingC closingD closed
C.正确
remember/forget 的用法：
remember/forget ＋doing sth.做过某事而且记得/但是忘了（做过了）
remember/forget +to do sth.记得/忘了要做某事（还没做）

C remember doing记得做过某事
remember to do记住要做某事

remember doing sth 记得干过某事
rememer todo sth 记得去干某事
所以应该选C

c,ing是已经做了

C
我记得我关了门