What percent of blood is made up of plasma

55% percent

Explanation:

Plasma is the largest component of your blood, making up about 55 percent of its overall content. When isolated on its own, blood plasma is a light yellow liquid, similar to the color of straw. Along with water, plasma carries salts and enzymes.

sadly i believe the answer is d

because health skills are tools and strategies and also practical skills are also something you need to learn (like tools and strategies) and put it in reality.