According to the Textbook, Which of the Following Is True

According to the textbook, which of the following is true?

A) Some educators worry that the amount of time students spend on their part-time jobs interferes with their schoolwork.
B) Adolescents are more likely to work for a parent or relative today than has historically been the case.
C) Most people enter the workforce later in life these days because of the prolongation of formal schooling.
D) More than 65% of high school-aged students are active in the paid labour force.