This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Pediatrics
In b-thalassemia there is: 
Select and explain. 
A. Excess a-chain, B. Reduced a-chain, C. Excess b-chain, D. Reduced b-chain
D: Reduced b-chain
Answer: D: Reduced b-chain 
Explanation: d. Reduced p-chain(Ref: Ne/sosn's 20/e p 2349, Ghai 8/e p 341)In beta-thalassemia there is reduced b chain and relatively excess chain.