Scientists are investigating how well different microphones capture and record sounds. They use tools that show how loud the high and low sounds are and a tool that shows how much noise is recorded along with the actual sounds. Which is a scientific question that could be included in this investigation?

Which microphone captures a singer’s low sounds the loudest?
Which microphone sounds best for a female singing rock music?
Which microphone best records high sounds and low sounds?
Which microphone is usually a male singer’s favorite?