Which best describes the process used by the Supreme Court to grant a writ of certiorari

Question

The court must review all cases where a review is requested
A unanimous vote by the justices grants a review of the case
A vote of four justices can grant a review of the case
A majority vote of five justices requires a review of the case.

Answer 1

A vote of four justices can grant a review of the case is the correct answer to this question.