Demographers are scientists who study human populations. They tend to map and understand the dynamics of population, which includes birth, death, and migration. All of these affects population and must be studied by demographers. They may study the population change within a country or the interrelationship of countries' populations, which is mostly necessary in studying migration. However, they could also take specialization. For example, they could study only parts of the population like workers' social pattern. Demographers mainly use statistics in mapping their data.
In<span> his classic ( the original study of obedience, Milgram found that 65% (two-thirds) </span><span> of subjects would shock an innocent person to what they believed was 450 volts.
This study disturbingly concludes that Human will have the tendency to follow an authoritative figure including killing another human being. (all participants know that 450 volts could cause death)</span>
Beside roles as parents, In the past decades, the roles of Men and Women have mixed up with one another.
In the past, women are known as the caregiver in the household and were known as the sole provider in the society. But due to more and more women in the workforces, many couples decided to switch up their roles into stay at home husband and working mom.
Well, all of the mentioned people have brought about important changes (without military support), so A and B are false.
Martil Luther King lived in the the 20th century, so D. is false too. The right answer is C.
