Both the first one and the last one could be correct here, but choosing which one is best would probably be the last one becasue the biggest difference, or what sets the two apart is primarily who is around.
B. Many people lost their jobs during the Great Depression.
the phrase “Great Depression” is a proper noun so it needs to be capitalized
The world that surrounds us today is a reflection of the technological progress that was achieved in the year 1984. Technology was revolutionizing itself and making its way into the homes of millions of Americans, never seizing to grow since.
