Which theme would be advanced by the tone in the above passage best?

There exists the same question that has the following choices.

A. Despite age and experience, some people never grow up.

B. Childhood has a magical quality that slips away.

C. Don't take childhood for granted.

D. Children should be given the chance to expand their vast energy.

The correct answer is letter D. Children should be given the chance to expand their vast energy.