Q22. According to the passage, what is the body's first line of defense against pathogens?English — Comprehensions — Question 22 of 660A. Antibodies produced by B cellsB. T cells that kill infected cellsC. The innate immune system including physical barriersD. Memory cells from previous infectionsPractice more English MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →