What is the best way to describe paraphrasing?

paraphrasing is not using quotation marks.
paraphrasing is rewriting ideas in your own words.
paraphrasing is using someone else's information.
paraphrasing is rearranging exact words in a new way.

Which best corrects the run-on sentence? the big dipper is easily spotted it looks like a cup with a long handle. a. the big dipper is easily spotted, so it looks like a cup with a long handle. b. the big dipper is easy. to spot it looks like a cup with a long handle. c. the big dipper is easily spotted. it looks like a cup with a long handle. d. the big dipper is easily spotted. looking like a cup with a long handle.