Assume that contemporary literary studies involving a systematic analysis of text have yielded evidence of underlying attitudes that traditional literary criticism had not detected. how does this assumption relate to assertions made in the passage?

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.