Seems to me that the second option looks as if it were correct. While paraphrasing and summarizing, you are trying to shorten up an original piece of writing. Giving a well developed descriptions of main ideas isn't something to look for in paraphrasing, so that's why the first option is incorrect. In addition, restating basically everything from a text is not called paraphrasing nor summarizing, and that is why I'd rather classify it as copying.
The long, winding corridor is illuminated with oblong skylights
It should only address one because you need three main ideas and three body paragraphs
No bolded word G poor form right here
I believe that the answer is b.
