In Shigella dysentery associated hemolytic uremic syndrome, the false statement is –
Hepatic failure does not occur in HUS.

Laboratory findings of HUS 

Thrombocytopenia                                                                                                                    
ARF →↑BUN and creatinine with oliguria                                                                        
Peripheral smear Helmet cells, burr cells, fragmental RBCs (Schistocytes).                    
Hemoglobinuria with hemosiderinuria     
Leukocytosis             
Microscopic hematuria      
Proteinuria    
Normal PT and APTT                                                     
Option B requires some explanation here -
Though neurological manifestations may occur in HUS, these are not common and this feature differentiated HUS from TTP. In TTP neurological symptom is one of the clinical criteria for diagnosis.
Leucocytosis
Neurological abnormalities
Hepatic failure
Thrombotic angiopathy