Answer: gather the materials needed to make a windsock
Explanation:
In order for Dora to achieve her goal of teaching a group of her peers how to make a windsock, it's vital for her to gather the materials that'll be needed to make a windsock. This is to enable her prepare and be ready.
In order to prepare, it's not important for her to wait for a windy day or find a good place to hang a windsock. Also, asking her peers what their favorite colors are isn't a good way to prepare.
Therefore, the correct option is D.
