Final answer:
The correct answer is b) Thrombocytopenia, hemophilia. With thrombocytopenia, there's superficial skin bleeding due to insufficient platelets, whereas hemophilia causes deep tissue bleeding due to inadequate clotting factors.
Step-by-step explanation:
The difference between platelet and clotting disorders is that with thrombocytopenia, there is bleeding in the superficial skin due to an insufficient number of platelets, leading to the blood's inability to clot properly. On the other hand, bleeding in deep tissue, such as muscles and joints, is indicative of hemophilia disorders — a group of hereditary diseases characterized by an inability to produce sufficient amounts of clotting factors, particularly factors VIII or IX, depending on the type of hemophilia (hemophilia A or B). Therefore, the correct answer is b) Thrombocytopenia, hemophilia. While thrombocytosis involves an excessive number of platelets leading to the risk of excessive clot formation and thrombosis, it is not directly implicated in deep tissue bleeding.