Answer:
Explanation:
Immune system is the protective system in our body which protects us from microbes and fight against pathogens. There are different type of cells in immune system, helper T cells are one of them. They help in stimulation and regulation of different type of cell like CD4 and some others, they are the main cell which helps in fighting against pathogens. so we can say that Helper T cells play a major role in stimulating and regulating the whole process.