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: Microbiology
False about Immunoglobulins is 
Select and explain. 
A. Y shaped heterodimer composed of four polypeptide chains, B. All four H and L chains are bound to each by disulfide bonds, C. Antibody contains two types of light chain and one type of heavy chain, D. There are 5 classes of H chains and two classes of light chains
C: Antibody contains two types of light chain and one type of heavy chain
Answer: C: Antibody contains two types of light chain and one type of heavy chain 
Explanation: Any antibody contains one type of light chain and one type of heavy chain.