Which statement best reflects gender and ethnicity differences in growth and motor development?

Which statement best reflects gender and ethnicity differences in growth and motor development?

• A. Girls' skeletons are more mature at birth, African American children tend to walk earlier, and they grow more quickly over life.
• B. Boys are taller than girls at birth and ethnicity has no impact on motor development.
• C. All children follow identical growth trajectories regardless of gender or ethnicity.
• D. Ethnicity has no influence on motor milestone timing.

Answer: (A)

Growth and motor development vary with gender and ethnicity, so patterns of when milestones appear and how quickly growth proceeds are not the same for every child. In many studies, girls show earlier maturation in early motor development than boys, and some research finds differences in the timing of milestones like walking among different ethnic groups due to a mix of genetics, environment, and nutrition. The statement here captures that idea: girls’ bones and maturation appear more advanced early on, African American children may tend to walk earlier in some samples, and overall growth can be faster for some groups. It’s important to remember there’s a lot of individual variation, so these are tendencies, not universal rules. Other options oversimplify by claiming no gender or ethnic influence or identical growth paths for all kids, which doesn’t fit observed diversity in development.

Growth and motor development vary with gender and ethnicity, so patterns of when milestones appear and how quickly growth proceeds are not the same for every child. In many studies, girls show earlier maturation in early motor development than boys, and some research finds differences in the timing of milestones like walking among different ethnic groups due to a mix of genetics, environment, and nutrition. The statement here captures that idea: girls’ bones and maturation appear more advanced early on, African American children may tend to walk earlier in some samples, and overall growth can be faster for some groups. It’s important to remember there’s a lot of individual variation, so these are tendencies, not universal rules. Other options oversimplify by claiming no gender or ethnic influence or identical growth paths for all kids, which doesn’t fit observed diversity in development.