Under a comparative negligence system, if Chez is responsible for 40% of his injuries:

a. he could recover 60% of his damages.
b. he could recover 40% of his damages.
c. he could recover 100% of his damages.
d. he could recover nothing as he exceeds the comparative negligence 30% threshold.

Explanation:

Generally, comparative negligence aims to split accidental recovery burden between the plaintiff and the defendant according to the proportion of the damaged they each are responsible for.

Here, Chez, the plaintiff, is responsible for 40% of his injuries, so he will recover 60% of his damages from the defendant.

In case if Chez was responsible for more than 50% of his damage, the court may bar the plaintiff to receive any recovery charges as the plaintiff is also held equally responsible.