Question

Dr. Semmelweis, a physician from Austria, wanted to locate the cause of childbed

fever in his maternity wards. He suggested that the doctors in the hospital were
transferring a disease-causing substance to the pregnant mothers because they were
not washing their hands. His suggestion was a:
observation
hypothesis
theory
controlled experiment

Answer 1

Hypothesis

Step-by-step explanation:

Answer 2

Hypothesis

Step-by-step explanation:

A hypothesis is an educated guess, based on evidence provided by the initial question the scientist had. I hope I helped you:)