Which of the following inventions of the 1920s created the *largest change* in American cities, lives, and lifestyles? A. personal cameras
B. frozen dinners
C. automobiles
D. radio

c automobiles because they changed the Idea of peoples using wagons

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

explanation:

the president, prime minister, chief justice, speakers and ministers take their oath of office. the oath is taken in bengali