The correct answer is option ''The stethoscope was invented because the physician did not want to put his head on women's chests to listen to their heart and lungs''.
In this case, the problem was that the physician's had a problem in listening the heart beats and the lung sound of the woman. To overcome this problem, the stethoscope was invented to listen the heart beat and the lung sound from distance, without keeping head on women's chest.
Dysentery is caused as a result of bacterial infection caused by an unusual strain of E.coli. The E.coli is found normally in the intestine but during infection watery diarrhea along with mucous and blood is there.
Dysentery can also be caused by other infectious pathogens such as bacteria, parasites or viruses. The infection is caused when the pathogen enters the large intestine via mouth due to consumption of contaminated water or food, oral contact with the objects which are contaminated.
The treatment to the infection is through antibiotic drug.
Ultraviolet or all wavelengths
