The Peremptory Challenge Is Said to Be More Powerful Than

The peremptory challenge is said to be more powerful than the challenge for cause because:

A) so few are ever granted by the judge.
B) there are only a limited amount available to each side of a case.
C) no reason has to be given for the move to dismiss the juror.
D) they have been found to be directly related to the outcome of a case.