Which one of the following has maximum familial tendency?

Facial forms and malocclusions that have a strong familial tendency are: Severe deep bite Class II division 2 pattern Skeletal open bite Mandibular prognathism Bimaxillary protrusion Mandibular retrognathism Severe crowding/spacing Median diastema Ref:Orthodontics: Diagnosis and Management of Malocclusion and Dentofacial Deformities 3rd ed O P Kharbanda pdf no 751