Q192. According to the passage, what is the body's first line of defense against pathogens?English — NUST Mock 2 — Question 192 of 200A. 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 →