During a well-child visit, a parent asks why their 7-month-old has started to reach for objects with one hand before picking up smaller items with the fingers. Which explanation should the nurse give?

"Your baby is demonstrating proximal-to-distal development, gaining control from the center outward"

Your baby should use both hands equally at this age"

"This is a sign of delayed fine motor development"

"Your baby is skipping developmental milestones"