Selena Has Cancer

Selena has cancer.She has sued the Tau Corp for negligence.She claims that her condition was caused by fumes that the Tau Corp carelessly allowed its factory to emit.Which of the following statements is TRUE with respect to the issue of causation?

A) If Selena proves that there is a 75 percent chance that her condition was caused by Tau Corp's carelessness,she will receive 75 percent of her damages.
B) If Selena proves that there is a 50 percent chance that her condition was caused by Tau Corp's carelessness,she will receive 100 percent of her damages.
C) If Selena proves that there is a 25 percent chance that her condition was caused by Tau Corp's carelessness,she will receive 25 percent of her damages.
D) If Selena proves that there is a 51 percent chance that her condition was caused by Tau Corp's carelessness,(but-for the carelessness Selenea would not have her condition) Selena will recover 100 percent of her damages.
E) If Selena proves that there is a 50 percent chance that her condition was caused by Tau Corp's carelessness,she will receive 50 percent of her damages.