Final answer:
Hemophilia A is caused by a deficiency of Factor VIII, which is crucial for proper blood clotting. This disorder is inherited and can result in severe bleeding from minor injuries. Regular treatment with clotting factors is essential for managing the condition. The correct option is B.
Step-by-step explanation:
Hemophilia A is a genetic disorder characterized by the inability to synthesize sufficient quantities of a specific clotting factor. The correct answer to the question about what causes Hemophilia A is B. Factor VIII. This clotting factor is essential for blood to coagulate properly, and a deficiency can lead to uncontrolled bleeding from even minor injuries.
Hemophilia B is a related yet distinct condition, caused by a deficiency in Factor IX. Hemophilia is usually inherited and can lead to complications such as bleeding into joints and potential damage to organs from internal bleeding. Treatment often involves regular infusions of the missing clotting factors.
It's important to distinguish between the different types of hemophilia — A, B, and C — which are caused by deficiencies in different clotting factors. Also noteworthy is that Hemophilia A and B are x-linked conditions, typically passed from a carrier mother to a male child.