<prompt> Which of the following act through helper T cells?CyclosporineAzathioprineCytarabineCycloserine  <response>: Mechanism of action of:Cyclosporine - Through T helper cells by inhibiting calcineurinAzathioprine - Inhibits de novo purine synthesis and damages DNA. It selectively affects cytolytic T lymphocytes.Cytarabine - Inhibits DNA synthesis in S-phase.Cycloserine - Inhibits bacterial cell wall synthesis. 