Which of the following descriptions about the life cycle of Eimeria tenella is correct? （）

A.Avian coccidiosis has a local distribution

B.Chickens get infected by consuming fodder or water that is contaminated by sporulated oocysts

C.A single species of Eimeria infection is commonly found in the field

D.Co-infection with more than one Eimeria species is rarely found in the field

正确答案：Chickens get infected by consuming fodder or water that is contaminated by sporulated oocysts