Use reasoning to answer the following question.
Sean stared at his door all night. He was scared that he might see it doing what?\nOptions:\n- wall\n- window\n- opening\n- closet\n- exit

opening
Opening means to move a door or window so as to leave a space allowing access and vision.

Sean stared at his door all night.

He was scared that he might see it opening.

.

Therefore, the answer is opening