Which line from The Glass Menagerie leaves matters uncertain about Laura for readers?
A. AMANDA: "Laura, where have you been going when you've gone on pretending that you were going to business college?"
B. LAURA: "You make it seem like we were setting a trap."
C. AMANDA: "I told you I wasn't going to humour you, Laura. Why have you chosen this moment to lose your mind?"
D. AMANDA: "We have to be making some plans and provisions for her. She's older than you, two years, and nothing has happened. She just drifts along doing nothing."