(单选题) Families can add to the stress a teenager might experience ______.(本题3.0分)
A、 by asking them to go to university
B、 by helping them with their homework
C、 as teenagers quarrel with their parents, and their brothers or sisters
D、 as families never support their children enough
出自:佳木斯大学-大学英语Ⅱ(专升本)