According to the passage, which of the following statements about the effect of some medicines is NOT right
A．Avandia, while lowering blood sugar, may cause weight gain, fluid retention, heart failure, anemia and unfavorable changes in lipid levels in the blood.
B．A certain medicine for heart attack, while stabilizing dangerous and abnormal heartbeats, may increase chances of dying.
C．Hormore treatment prevents heart disease because it raise good cholesterol.
D．An experimental drug that raise good cholesterol disappoints researchers because it increases heart attack.