D I'm not an expert but I would say D
The arteries in the image appear red because they are carrying oxygenated blood to the body. That is option B.
<h3>What is an artery?</h3>
An artery is known to be vessels that are surrounded by smooth muscles whose major function.is to distribute oxygenated blood from the lungs.
The blood is oxygenated in the lungs and is transported to the heart where it is then pumped to the whole body through the aorta.
Therefore, the arteries in the image appear red because they are carrying oxygenated blood to the body.
Learn more about blood vessels here:
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The correct answer is C.
Cardiorespiratory fitness is a medical term used to describe the capacity of an athlete's body to transfer the necessary oxygen to the muscles and the capacity of the muscles to absorb this oxygen. There are various ways to assess the cardiorespiratory fitness of an athlete, such as the VO2max testing, the Bruce protocol treadmill test, and the beep or bleep test. The more appropriate way to assess the cardiorespiratory fitness is to use a combination of tests since this will give a complete image of the body's fitness level.