How Can Withholding or Removing Treatments Where the Burden or Harm

How can withholding or removing treatments where the burden or harm to the person is determined to outweigh the benefits be viewed?  

A) as allowing the person to die as a result of the natural progression of the disease process  
B) as causing the painless death of the person in order to end or prevent more suffering  
C) as providing the person the means to end his or her own life when he or she is ready to die  
D) as following the directives to avoid suffering included in do not resuscitate orders