Final answer:
Billy's family context can affect his behavior in adulthood, making the statement True.
Step-by-step explanation:
The statement is True. Billy's family context placed him at a high risk for delinquency, which largely explains his behavior in adulthood. Family context is an important factor in determining a person's likelihood of engaging in delinquent behavior. If a person grows up in a family with various risk factors, such as substance abuse, domestic violence, or neglect, they are more likely to exhibit delinquent behavior in their adulthood.