Answer:
This is true.
Explanation:
This shows that you know your information is reliable and correct. Hope this helps ;)
I think it would be To Whom It May Concern, because you don't know their relationship status (if that makes any sense)
I could be wrong though...
Answer:
if we allow the children to pick what movie to see this time,they are going to expect to be able to choose the school they go to or doctor they see