Sam had to mix C. equal parts of the two chemicals for the experiment.
The other options just sound wrong. You need to use an adjective here, and B, D, and F aren't adjectives. A doesn't fit either.
Answer:
Due to his excellent skills, Walter is now considered a master.
Explanation:
Body composition describes the amount of fat, bone, water, and muscle in the body. Measuring your body composition will tell you your own body's unique makeup and help you identify areas to work on to improve your overall health and wellness.