Thalassemia and sickle cell anemia are caused due to a problem in globin molecule synthesis. Select the correct statement
A. Both are due to qualitative defect in globin chain synthesis
B. Both are due to a quantitative defect in globin chain synthesis
C. Thalassemia is due to less synthesis of globin molecules
D. Sickle cell anemia is due to a quantitative problem of globin molecules
