On the way to the ice rink, Cat Grant picked up hot chocolate and warm mittens at the store.
-The first comma is necessary to indicate a break in the sentence.
-The second comma initially given can be removed since commas aren’t needed to separate sequences of two.
The purposes of sentences 3-6 is to describe in detail what the outside
of the cottage looks like. The description paints a clear image in the
readers head of specific details and surroundings in and around the
outside of the cottage. It adds vivid imagery which also makes the
paragraph more interesting. So they provide supporting details
The answer would be the first one because it sounds formal where as the other ones are less formal and sound as if you are talking to a friend