Final answer:
Fewer than one third of adolescents engage in delinquent acts without police contact.
Step-by-step explanation:
The correct answer is c. Fewer than one third of adolescents engage in at least one delinquent, or illegal, act without coming into police contact.
The reference text states that when making generalizations about teenagers, words like 'generally' or 'tend' are used to suggest that the statements are accurate for the bulk of the group being discussed. Based on this information, we can conclude that fewer than one third of adolescents engage in delinquent acts without police contact.
For example, the reference text mentions that approximately one third of US teenagers have different political ideologies from their parents.