Sarah and Emily are sisters who share a room with two closets, one red and one yellow. Sarah has a collection of hats that she keeps in the red closet, while Emily stores her shoes in the yellow closet. One day, their cousin Lily comes over to visit and borrows a hat from Sarah's red closet without telling anyone. Later, when Lily returns the hat, she mistakenly puts it in the yellow closet. Meanwhile, Sarah tells Emily about her new hat which she plans to wear for a party tonight but doesn't mention where she kept it. Where will Emily think Sarah will look for her hat?

Respond very briefly.
Emily will think Sarah will look for her hat in the red closet. Sarah has a collection of hats and keeps them in the red closet, which is something both sisters would be aware of because they share the room and its storage spaces. Emily has no reason to suspect that the hat would be in her yellow closet because it is designated for her shoes, not Sarah's hats. Since Sarah didn't specify where she kept the new hat, Emily would naturally assume that Sarah followed her usual practice of storing hats in the red closet.