<span>D is the correct answer. Controllable risk factors are factors you have control over, for example environmental or behavioural. These are such things as sexual behaviour and smoking. Her age and heredity are examples of uncontrollable risk factors, as a person cannot determine these.</span>
The U.S. Department of Health and Human Services state that you can be any age to complete an organ donor card. People under the age of 18 must have permission from their guardian(s). <span />
