3. Cute, coy, charismatically clever cardiologist Cordelia caringly cures countless critical crisis conditions. Cordelia prescribes a medication with 2 possible side effects: in patients who take this drug, 25% develop Achingly Acute Acne (event A), 20% develop Blistering Buttock Boils (event B), and 1 patient in 25 develops both conditions. What are the probabilities that a patient develops:

a. No Boils?

b. Acne Or Boils?

c. Acne And No Boils?

d. One of these two side effects but Not both?