Being a parent is not always easy and being a parent of a child with special needs often

问题补充：

Being a parent is not always easy, and being a parent of a child with special needs often carries with extra stress.

Ait

Bthem

C. one

Dhim

答案：

(答案→)A. it

B. them

C. one

D. him

解析：选项中只有it可指代一件事情-being a parent of a child with special needs，故选A。