Which of the following statements is true?

a)If Pamela raises a knife in a threatening manner against Bob, and Bob sees this, then Pamela may have committed the tort of assault

b)If Pamela raises a knife in a threatening manner against Bob, and Bob sees this, then Pamela may have committed the tort of battery

c)If you write review of a restaurant, and indicate that you saw roaches and mouse droppings on the floor, and this was true, you could use the defence of fair comment if the restaurant owner sues you with defamation

d)The defence of contributory negligence is a complete defence

e)Joint tortfeasors acts as a defence because it holds the plaintiff partially responsible for his or her action