Question

multiple - choice question
why did people of the past give such strange advice to sick people?
because microorganisms didnt exist back then.
because they didnt know that microorganisms existed and caused infections.
rewatch

Explanation:

Microorganisms have always existed. In the past, due to lack of scientific knowledge about them and their role in causing infections, people gave strange medical - advice.

Answer:

Because they didn't know that microorganisms existed and caused infections.