The nurse explains to parents of school-age children that according to Kohlberg's theory of moral development, their child is at the conventional stage of moral development. Which is the nurse's best explanation for the motivation for school-age children to follow rules?

A. “This is a vasomotor response caused by cooling or warming": While vasomotor responses can cause changes in skin color due to temperature changes, acrocyanosis specifically refers to blue discoloration of the hands and feet due to reduced peripheral circulation, not necessarily due to temperature changes.

B. “This is normal her circulatory system will take a few days to adjust”: While it's true that newborns may have transient circulatory changes as their circulatory system adapts after birth, acrocyanosis specifically refers to a benign condition characterized by persistent blue discoloration of the extremities unrelated to circulatory adjustments.

C. "Let's watch her carefully to make sure she does not have a circulatory problem": While it's important to monitor infants for any signs of circulatory problems, acrocyanosis is typically a

benign and self-limiting condition that does not require intervention unless accompanied by other concerning symptoms.

D. "Your daughter has acrocyanosis; this is causing her blue hands and feet.”: This response provides an accurate explanation for the blue discoloration of the infant's hands and feet. Acrocyanosis is a common and benign condition in newborns characterized by blue discoloration of the extremities due to peripheral vasoconstriction, which gradually resolves over the first few days to weeks of life.

A. Puberty might be delayed if scrotal changes have not occurred by the age of 11 years: This statement is accurate because the lack of scrotal changes by the age of 11 years may indicate delayed puberty, prompting further evaluation by a healthcare provider.

B. Growth spurts in height occur toward the end of midpuberty: Growth spurts in height typically occur during midpuberty, rather than toward the end, as adolescents experience a rapid increase

in skeletal growth.

C. Changes in the voice signal the beginning of puberty: While changes in the voice, such as voice cracking and deepening, are indeed part of puberty, they usually occur later in puberty, not necessarily at the beginning.

D. Gynecomastia commonly occurs during late puberty: Gynecomastia, the development of breast tissue in males, typically occurs during mid-puberty and may persist into late puberty but is not exclusive to that period.