A.The number of some variant part is normal
B.The number of some variant part is more than normal
C.The number of some variant part is less than normal
D.The number of some variant part is unaffected
A.The number of some variant part is normal
B.The number of some variant part is more than normal
C.The number of some variant part is less than normal
D.The number of some variant part is unaffected