Which of the Following Statements Is True of Peremptory Challenges

Which of the following statements is true of peremptory challenges?

A) The number of peremptory challenges allowed varies from court system to court system.
B) The number of peremptory challenges cannot vary between the parties to a lawsuit.
C) The court has always allowed peremptory challenges to be used to strike prospective jurors on the basis of gender.
D) A cause or reason must always be given to use a peremptory challenge.
E) The number of peremptory challenges is the same across all types of cases within a court.