During exposure to a foreign invader, there are more __________ present in the vertebrate body than before exposure

Question: During exposure to a foreign invader, there are more __________ present in the vertebrate body than before exposure
[A].

antibodies

[B].

lymphocytes

[C].

macrophages and antigens

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.