Read this excerpt from The Miracle Worker Act 3.KELLER: Miss—Annie.(He has an envelope in his fingers.)I’ve been waiting to give you this.ANNIE [AFTER A BREATH]: What?KELLER: Your first month’s salary.(He puts it in her hand.)With many more to come, I trust. It doesn’t express what we feel, it doesn’t pay our debt. For what you’ve done.Based on the dialogue, which statement best describes Keller?