As Erin Walks to the Front of the Classroom to Write

As Erin walks to the front of the classroom to write on the board, she stubs the toe of her shoe on the floor and nearly trips in front of her professor. She is mortified. However, her professor is actually thinking about his lunch plans. Erin's reaction is an example of ____.

A) the spotlight effect
B) mirroring
C) selflessness
D) self-concept