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:
A. observation
B. hypothesis
C. theory
D. controlled experiment

Dr. Semmelweis, a physician from Austria, wanted to locate the cause of child-bed  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

Explanation:

Dr Semmelweis only observed what could have caused the child-bed fever since there is no migration of people from elsewhere it shows that it is only within the terrain are causing the transmission within themselves.

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