I think the answer is either A or B
Primary source is an artifact, a document, diary, manuscript, autobiography, a recording, or other source of information that was created at the time under study.
Mass society is a sociological term which revolves around creating mass-scale culture and impersonal social institutions which serve as creators of a mass culture for the entire population. They are usually heavily involved with the mass media and easy access by all people from within a society. It started rising in the 19th century with the industrial revolution
Mass society was very important for the economy because factories started manufacturing high amounts of goods that were affordable and easily distributed to everyone which led to large earnings and large economic growth of countries. For example, people don't go to traditional shoemakers anymore but rather to big companies that sell standardized shoes
Leisure activities also changed with the rise of the mass society culture with things like advertising. For example, local communities had their own ways of spending their leisure time however with the advent of mass media culture started unifying and people started spending their leisure time in more or less the same way regardless of where they are.
