Final answer:
The trend observed in female delinquency in recent years is a consistent decrease.
Step-by-step explanation:
The trend observed in female delinquency in recent years is d) Decreased consistently.
According to a study by the Office of Juvenile Justice and Delinquency Prevention, the arrest rates for females have been decreasing consistently in the past several years.
One reason for this decrease could be attributed to the implementation of gender-responsive programs that aim to address the specific needs and challenges faced by females in the juvenile justice system.