This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunity, Subject name: Microbiology
Cells involved in humoral immunity - 
Select and explain. 
A. B-cells, B. T-cells, C. Helper cells, D. Dendritic cells
A: B-cells
Answer: A: B-cells 
Explanation: Ans. is 'a' i.e., B-eells o There are two main types of adaptive immunity:-1. Cell mediated (cellular) immunity.# Mediated by T-lymphocytes# Responsible for defense against intracellular microbes.2. Humoral immunity# Mediated by B-lymphocytes and antibodies.# Protects against extracellular microbes and their toxins.