A nurse is teaching a newly hired nurse about motor skill development of school-age clients who are 6 to 12 years old. Which of the following statements by the newly hired nurse demonstrates effective teaching?

A. By age 6, while children can dress themselves, they may still need assistance with more complex grooming tasks, making this statement too absolute. B. Counting backwards from 20 to 1 is typically expected by age 8, not age 7, indicating this statement is inaccurate regarding cognitive development. C. Engaging in motor activities that require balance, such as jumping rope, is appropriate for children around age 6, demonstrating the expected physical development in this age group. D. While children can use simple tools, mastery and effective use of tools like a screwdriver or hammer are more typical around ages 8 to 10, making this statement premature for age 6.