What does 'trial by jury' mean in Australian law, and for what types of cases is it common?

• A. In many jurisdictions, serious criminal cases are tried by a jury of peers, supervised by a judge; less serious matters may be heard by a judge alone.
• B. Juries decide only on sentencing.
• C. Trials by jury are used for all civil and criminal cases.
• D. Trials by jury are only for international crimes.

Answer: (A)