Which of following statements regarding the Supreme Court of Oklahoma is true?
A. Justices must be at least 21 years old.
B. Justices serve for life.
C. The court hears both criminal and civil cases.
D. The court has nine justices.
The court was established when Oklahoma achieved statehood in 1907, and was initially composed of five justices, but in 1917, the court was expanded to nine justices.
