What's the function of the muscular system

The muscular machine is composed of specialized cells called muscle fibers. Their predominant feature is contractibility. Muscles, attached to bones or inside organs and blood vessels, are responsible for movement. Nearly all movement in the body is the result of muscle contraction.

Explanation:

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.

b is the best answer for this question.