Infant skeletons are generally more pliable than those of adults. Based on the characteristics of tissues present in animals and their associated functions, which of the following works to explain this observation?
A. Loose connective tissues primarily provide structural support for the body in infants, while dense connective tissues primarily provide structural support for the body in adults.
B. Infant bone tissue is composed of primarily loose connective tissue, while adult bone tissue is composed of primarily supporting connective tissue.
C. Infants must have a different amount of skeletal muscle per kilogram (kg) of body weight than adults.
D. Infant structural support tissues consist of higher relative amounts of cartilage than those of adults.