What is the main purpose of a concluding paragraph?

to add more evidence to support the thesis
to include additional questions for research
to introduce new but related information
to restate the thesis and summarize the final point

explanation

old disney was more kid oriented as appose to new disney it's more teen oriented.i guess what i'm trying to say is new disney is way more mature and out there then old disney. for instance all you see in new disney is bf/gf drama and old disney it was nothing like that. kids are growing up and as coorpations like disney, nickolden etc they tend to follow what kids follow so they can have more views . therefore   they have inferred   that now days kids want to have relationships and stuff so that's what disney gives them.

about the letter or who wrote the letter