A single story house with a white picket fence and a wooden door could be described as a cottage.
A cottage is usually a small rural traditional house. This type of accommodation was typically owned by farmers but nowadays there are more modern cottages as well, which may also have two floors and be a little bigger.
C. To prove that you read the book or article closely
Explanation:
When you use a quote from a book or article, or whatever you're reading, that shows that you read the book or whatever, which is what option C is saying.
