问题
It is said that our body _______ 206 bones; if one of _____ is broken, it will cause inconvenience of some kind
A:makes up of; them
B:is made up of; them
C:is made up of; which
D:makes up; which
B:is made up of; them
C:is made up of; which
D:makes up; which
正确答案是：
