Variable is a letter next to a number whether it’s x or y it can be any letter really but main ones is x and y and data is something written down from an oberservartion whether it’s an experiment or table etc.
Answer: delete “because” I’m assuming that was the underlined portion. If so, the answer choice D would be the correct one.
It’s the magnet cause it is the only one that can pull something in or push away without being to close