单项选择题

A.MCV>正常,MCH正常,MCHC正常
B.MCV>正常,MCH〈正常,MCHC正常
C.MCV>正常,MCH>正常,MCHC正常
D.MCV〈正常,MCH正常,MCHC正常
E.MCV〈正常,MCH〈正常,MCHC正常