A question about probabiltiy

Hi, I am studying for a quiz. Please help me with the following question. I did not get the answer. Ninety eight percent of all babies survive delivery. However,15 percent of all births involve Cesarean C sections, and when a C section isperformed, the baby survives 96 percent of the time. If a randomly chosenpregnant woman does not have a C section, what is the probability that her babysurvives? Ans: 0.9835