What Is a "Probable Cause

What is a "probable cause?"

A) The level of evidence usually required by a jury to arrive at a unanimous verdict in a criminal case
B) Series of written questions that specifically identify information needed from the opposing party
C) A written order in the name of the court, requiring a witness to submit to a deposition, give testimony at trial, or report to an administrative body
D) The level of evidence required for a reasonable person to believe that a crime has been committed and the accused committed it