Jane has been taking the antibiotic chloramphenicol for a few weeks as treatment for a serious bacterialinfection. There is a possibility that a future side effect of long-term antibiotic therapy could cause her to develop problems in blood cell counts. The result is
A) autoimmune disease.
B) aplastic anemia.
C) drug resistance.
D) thrombocytopenia.
E) erythroblastosis.