MrsLove Is Being Prepared for Surgery to Remove a Brain

Mrs.Love is being prepared for surgery to remove a brain tumor.The neurosurgeon has described the location of the tumor and how he plans to remove it.He discusses the duration of the surgery and the type of anesthesia.He has explained there is no other alternative method to this treatment and also explained that chemotherapy and radiation usually follow surgery.He explained if no surgery is done, the tumor will spread and be fatal.What part of informed consent was omitted from this explanation?

A) Nature of procedure and how it will be performed  
B) Possible risks and the expected outcomes  
C) Any other methods of treatment and those risks  
D) Risks if no treatment is given