Which of the Following Is True of a Bifurcated Proceeding

Which of the following is true of a bifurcated proceeding?

A) The defendant appears in court to waive a trial by jury, after which the case is determined by a judge in a second proceeding.
B) The defendant's sentence is split into two segments during sentencing, the time already served and the time left to serve.
C) Separate trials are held to determine guilt and to decide on the appropriate sentence.
D) It consists of two proceedings, a grand jury investigation and a jury trial.