What elements are generally required for a successful product liability lawsuit?

Question $3$ options:

a$)$

That the defect should have been discovered and fixed prior to sale.

b$)$

Only that the product is defective.

c$)$

That the product is defective, that the defect existed when the product left the defendant's control, and that the defendant was negligent.

d$)$

That the defendant was negligent.

e$)$

That the product is defective and also that the defect existed when the product left the defendant's control.