Final answer:
Mr. Jones can safely receive a blood transfusion of type A- or O-. Type O- is the universal donor and compatible with any blood type.
Step-by-step explanation:
Mr. Jones, whose blood type is A- (A negative), requires a blood transfusion. The ideal choice for his transfusion would be blood type A- to perfectly match his current blood type. However, in the absence of an exact match, Mr. Jones can safely receive O- (O negative) blood. Type O- is often called the universal donor because it lacks both A and B antigens on the red blood cells, which means it can be used for transfusions with any blood type without causing an immune response. It is important to pay attention to the Rh factor as well; since Mr. Jones is Rh-negative, he should only receive Rh-negative blood to avoid potential complications.