Question

an important development or discovery in science and medicine due to industrialization was
salt’s development of a vaccine that could prevent polio.
pasteur’s discovery that disease is spread by bacteria.
curie’s development of the process of pasteurization.
jenner’s discovery of a medium for growing and identifying bacteria.

Explanation:

Pasteur's germ theory (disease spread by bacteria) emerged during industrialization, addressing public health crises from urbanization/industrial growth. Salk's polio vaccine was mid-20th century (post-industrial peak), Curie did not develop pasteurization (Pasteur did), and Jenner's work was pre-industrial (smallpox vaccine, not bacteria medium).

Answer:

B. Pasteur's discovery that disease is spread by bacteria.