Question

Which of the following can induce immunity
a) bacteria b) virus c) parasite d) all the above​

Answer 1

just I think it right answer is bacteria

Answer 2

Answer:

Extensive research shows that parasitic worms have the ability to deactivate certain immune system cells, leading to a gentler immune response. Often, such a response is beneficial to both parasite and host, according to Professor of Medical Microbiology Graham Rook of University College London.

c)parasite