When Electroconvulsive Shock Therapy (ECT)was Introduced as a Treatment for Schizophrenia

When electroconvulsive shock therapy (ECT) was introduced as a treatment for schizophrenia in the 1903s,what was the rationale for using shock therapy for these patients

A)  The psychiatrist who introduced the treatment has a family member who suffered an electric shock and was 'cured' of his ailments 
B)  ECT was believed to be much more humane that the other treatments being offered at the time 
C)  The psychiatric community was fed up with patients not cooperating with the treatments being offered 
D)  The psychiatrist who introduced the treatment speculated that epilepsy and schizophrenia could not coexist in the same body