Answer: D. Quantitative Observation.
Quantitative observation is the usage of your senses (smell, sight, touch, etc) or measurements to observe the results.
The correct answer is option c that is, changing the role of women.
The flappers were young, scandalous, and liberated. They denied the older ways and became excited over the popular culture and jazz. They did what the society did not anticipated from the young women.
They smoked, danced to Jazz Age music, they spoke their own language, they wore makeup, and they lived for the moment. The flapper fashion followed the lifestyle, and the look became trendy due to the lifestyle.
Common colds are caused by viruses and antibiotics only work in bacteria. Antibiotics work by targeting the different replication processes and functional characteristics of bacteria. Virus on the other hand are only active once they have invaded something to use as a host. Therefore it is more difficult to target the mechanisms of viruses because they are usually dormant and have different organelles than of bacteria.
