Because her coworker Rita kept her eyes on her work and never said much, Laura concluded that Rita wasn't very smart. But when a new procedure was introduced on their floor and Laura made several errors, Rita showed her a simple way to remember each step. Laura made the mistake of 

       A. failing to listen to others.   B. failing to take responsibility for her mistakes.   C. having a low level of self-esteem.   D. misjudging other people's abilities.