Answer:a. She is encouraging or reinforcing Anna's acting out behavior.
Explanation:If children were given an option to either go to school to learn or just go to school to play they will absolutely choose playing in school as a best option for them.
Anna probably doesn't like math or she may not be good at math hence any escaping route she will gladly take it or it might be that at first she was just acting out because of that day issue however when she realised that the psychologist offers her things to play with , she probably continued intentionally for an opportunity to go an play.