Which of the following BEST explains why using more than one assessment of cardiorespiratory fitness gives a better picture of fitness level?

Different assessments can measure different aspects of cardiorespiratory fitness, so combining their results gives a more complete picture of a person's fitness level. This does not mean that every individual test is inaccurate or that heart and lung fitness must always be assessed separately. Therefore, the best answer is “Using more than one assessment provides a more complete picture of an individual's fitness level.”

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