Background Paragraph: Hemophilia is the name of a group of hereditary diseases that affect the body's ability to control blood clotting. Hemophilia is caused by a lack of clotting factors in the blood. Clotting factors are normally released by platelets. Since people with hemophilia cannot produce clots, any cut can put a person at risk of bleeding to death. The risk of internal bleeding is also increased in hemophilia, especially into muscles and joints. This disease affected the royal families of Europe. 
Story: Two twin sisters were taken to the doctor's office by their parents. It turned out that Mary had hemophilia while Ann didn't have any blood disease.
Which sister didn't have the same disease as the royal families of Europe did? Which sister had blood that didn't clot? Which sister had blood that was able to clot? Which sister had fewer clotting factors in the blood? Which sister had more clotting factors in the blood? Which sister had the same disease as the royal families of Europe did? Which sister was less exposed to the risk of bleeding to death? Which sister was less exposed to the risk of internal bleeding? Which sister was more exposed to the risk of bleeding to death? Which sister was more exposed to the risk of internal bleeding?