Answer: Herbert Gans in his study focused on Demographic factors such as occupation, income, age, race.
Explanation: Herbert Gans, a sociologist born born May 7, 1927 was. He was a German immigrant to America and mainly described his works as an immigrant trying to understand America. His works mainly focused on characteristics used to classify people such as age, income(upper class, lower class, middle class), race(black, white, Hispanic, etc.)