Tree house
because they were in tree house
The answer is B because it doesn't have any commas and it wouldn't make sense without it. Looks like you got it correct.
This is false!
An "unabridged" version means not shortened, complete, not missing any text. A shortened version of a novel or of a dictionany is the opposite of this: it is abridged. The verb "abridge" itself means to shorten without a loss of content.
In an outline capital letters can indicate many different things, but almost always they are used to signal a change in topic, or at lease a change in subtopic.
