Charlie is summoned for jury duty. While still in the selection process, it is discovered that one of the parties to the case used to be an old friend and neighbor of Charlie's. Which of the following would most likely happen?

• Charlie would be excluded for cause.
• Charlie would be excluded through preemptory challenge.
• Charlie would be preserved on the jury since he would have inside information about one of the parties.
• Charlie can refuse to serve on the jury.