At Age 6,Joe Underwent a Minor Dental Procedure That Was

Multiple Choice

At age 6,Joe underwent a minor dental procedure that was followed by prolonged bleeding.When the bleeding could not be controlled by any common means,Joe was hospitalized and,later,diagnosed with a condition that can make simple injuries,bruises,or cuts extremely threatening because of delayed blood clotting.His parents were informed that if the problem continued or worsened,Joe would require frequent blood transfusions and medical care.Joe is suffering from

A) phenylketonuria.
B) hemophilia.
C) spina bifida.
D) diabetes.