The correct answer is A) show just cause why you are being held a prisoner.
A writ of habeas corpus is used to show just cause why you are being held a prisoner.
A writ of habeas corpus helps individual freedom because it allows the accused to request a trial by jury. This way the court can confirm if its detention is lawful. The term was first used in 1215, as one of the clauses of the English Magna Carta.