[Verified Answer]: As she watches her granddaughter’s dance…

As she watches her granddaughter’s dance recital, Patty perceives two separate groups of dancers. Her grandaughter’s group wore bright turquoise costumes with gold accents and the other group wore bright gold ccostumes with turquoise accents. Patty perceived the girls as belonging to two different groups due to the principle of Select one: similarity motion parallax closure continuity proximity convergence