Which is an example of scaffolding?

Bryce buys a do$-$it$-$yourself kite kit for their $6-$year$-$old daughter Angela. They lay all of the pieces out for them and then allow them to read the instructions and follow them their self.

Miriam helps their son David to make cookies. They measure all of the ingredients out and place them on the counter in small bowls. They read the recipe aloud as David places the ingredients in the bowl and mixes them together with a spoon.

Jason helps their son build a model airplane by assembling it while their son watches.

Josie and Priscilla buy an Xbox game system for their $5-$year$-$old daughter Rebecca. They set it up for them and then allow them to figure out how to turn it on and use it$.$