This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Which is an abnormal lipoprotein ? 
Select and explain. 
A. VLDL, B. Chylomicron, C. Lp (a), D. LDL
C: Lp (a)
Answer: C: Lp (a) 
Explanation: Ans. is 'c' i.e., Lp (a) Some people have a special type of abnormal LDL called lipoprotein (a) or Lp (a), containing an additional protein, apoprotein-a.Elevated LPa levels are associated with an increased risk of CHD.