This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bleeding Disorders, Subject name: Pathology
Which of the following antibodies is most frequently seen in Antiphospholipid Syndrome? 
Select and explain. 
A. Beta 2 microglobulin antibody, B. Anti-nuclear antibody, C. Anti-centromere antibody, D. Anti- beta 2 glycoprotein antibody
D: Anti- beta 2 glycoprotein antibody
Answer: D: Anti- beta 2 glycoprotein antibody 
Explanation: Ans. (d) Anti- beta 2 glycoprotein antibody(Ref: Robbins 9th/pg 124; 8th/pg 123)Anti- beta 2 glycoprotein antibody is most frequently seen in Antiphospholipid Syndrome