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

The correct answer for the question that is being presented above is this one: "C. Using more than one assessment provides a more complete picture of an individual's fitness level."

Here are the following choices:
A. No individual cardiorespiratory fitness test is accurate.
B. Heart and lung fitness must be assessed separately.
C. Using more than one assessment provides a more complete picture of an individual's fitness level.
D. all of the above