Short-lived immunity which is acquired from mother, via the placenta or through mother's milk to the infant is categorized as
A
Cellular immunity.
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B
Innate non-specific immunity.
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C
Active immunity.
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D
Passive immunity.
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Solution
The correct option is C Passive immunity. The natural immunity that is transferred from mother to foetus across placenta or mother's milk is an example of passive immunity. Immunity is transferred through the placenta in the form of antibodies mainly, IgG and IgA and also through breast milk. So, the correct answer is option D.