challenge: What is the purpose of using phenolphthalein indicator in the saponification value determination method?
  
  A. To indicate the consumption of weak base (potassium carboxylates) by the acid
  B. To indicate the consumption of strong base (KOH) by the acid
  C. To determine the quantity of triglycerides in the sample
  D. To measure the pH of the reaction mixture
  Answer: 