Whose exploratory behavior would most likely just begin to involve exploring an item with both their eyes and hands?

Question

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At six months old, Heather is likely beginning to develop the ability to coordinate her visual and motor skills, leading to exploratory behavior that involves both her eyes and hands. The other age options are either too young (2-month-old) or too old (12 and 18-month-old) to have just begun this type of exploration.

Whose Exploratory Behavior Would Most Likely Just Begin to Involve