Question

_____ are several rules to remember.
Which homophone correctly completes the sentence?
They’re
There
Their

Answer 1

The answer is there. 

There refers to a place or thing 
Their is what you use to say something belongs to someone
They're is talking about people

Answer 2

there is the correct 1, since "they're" means "they are" & "their" is like, something is theirs. it belongs to them. u get the jist B)