Who has been on the court the longest? What year did that justice take his/her seat? Who is the newest justice? What year did he/she join the court?

What is the difference between the kurds and the shia muslims? a the kurds are a religious group while the shia muslims are an ethnic group. b the kurds and the shia muslims are religious groups. c the kurds are an ethnic group and the shia muslims are a religious group. d the kurds and the shia muslims are ethnic groups.