challenge: What is the initial state of hepatic lipase (HL) in the human body?
  
  A. HL is inactive and found in two forms: one bound to HSPG in the liver and one bound to HDL in the blood
  B. HL is active and bound to HDL in the liver
  C. HL is active and found in the bloodstream
  D. HL is inactive and only found in the bloodstream
  Answer: 