Petitions for Writs of Certiorari Are an Important Part of the Process

Petitions for writs of certiorari are an important part of the process by which

A) the Supreme Court decides which cases to hear.
B) the Supreme Court decides which justice will author the majority's decision.
C) the president decides whom to appoint when a vacancy appears on the Court.
D) the Senate decides whether or not to approve a presidential appointee to the Supreme Court.
E) the Supreme Court decides whether the argument of a disputant in a given case has a strong factual basis.