0. According to put-call-forward parity, which of the following relationships hold?
The put price plus the value of a risk-free bond with face value equal to the forward price equals the call price plus the value of a risk- free bond with face value equal to the exercise price.
The put price plus the value of a risk-free bond with face value equal to the exercise price equals the call price plus the value of a risk-free bond with face value equal to the forward price.
The put price plus the value of a risk-free bond with face value equal to the forward price equals the call price minus the value of a risk-free bond with face value equal to the exercise price.