Pick out the wrong statement?

A. Brittle materials are generally tested in tension

B. Fatigue fracture of a material is always brittle in nature and takes place due to the existence of

C. sed by the formation and coalescence of voids in the necked region

D. Brittle fracture is caused by the propagation of pre-existing cracks in the material and involves minimum plastic deformation

E. Ductile fracture of a stressed material, which exhibits a large plastic deformation is commonly

F. e imperfections

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