Innate immunity: Immunity that is naturally present and is not due to prior sensitization to an antigen from, for example, an infection or vaccination. Since it is not stimulated by specific antigens, innate immunity is generally nonspecific. It is in contrast to acquired immunity. Also called natural immunity.
Hope this helps
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The right answer has to do with birth defects and in this case the defect wouldn't be hereditary nor genetic so i think the best answer is (D) underdeveloped lungs
