This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
T helper cells recognises - 
Select and explain. 
A. MHC class I, B. MHC class II, C. Processed peptides, D. Surface Ig
B: MHC class II
Answer: B: MHC class II 
Explanation: CD4+ T cells have TCRs with an affinity for Class II MHC Ref: Ananthanarayanan & Panikers textbook of microbiology 9th edition pg: 135