According to the passage, it is true that ________. [A] in the late 19th century in th

题目：According to the passage, it is true that ________. [A] in the late 19th century in th

According to the passage, it is true that ________.
[A] in the late 19th century in the United States the dividing line between adolescence and adulthood no longer existed
[B] no one can marry without the permission of his parents until the age of twenty-one
[C] one is considered to have reached adulthood when he has a driver’s license
[D] one is not free from the restrictions of child labor laws until he can join the arm