Answer:
A. It reveals the moment when Mandy explains her problem; she is nervous about her new school.
Step-by-step explanation:
It wouldnt be B because Mandy didn't hug the neighbor, she hugged her mom, all the neighbor did was just help Mandy's mom get Mandy to realize how important she is to her mom.
It wouldnt be C because, she does feel sorrow but its more emphasized that she is nervous to go to school.
It woulldnt be D because Mandy never said she was thrilled to go to school. It still seemed like she didnt want to go.