Answer:
Various aspects or branches of the study of human society, considered as an educational discipline.
Explanation:
Although the term “social studies” includes primarily history, geography, civics, economics, and sociology, it also deals with materials from other subjects. Thus some elements of ethics, psychology, philosophy, anthropology, art, literature, and other subjects are included in various courses in the social studies.
I think it's ashikaga period sorry if am wrong
OPTION A is right answer that is broadcast, Internet, and print media ,
I think the answer would be by injecting a radioactive isotope.
