Ethnocentrism- evaluation of other cultures according to preconceptions originating in the standards and customs of ones own culture.
The following will contribute to an increase in real GDP from year to year which includes Capital deepening, increases in imports, increases in technology. Letter (C) decreases in population does not really affect and contribute to the increase in real GDP since people is considered as manpower. Decrease of manpower means that there is also a decrease in real GDP.
The best source of historical evidence to describe how an events unfolded would be a first person source, or a website ending in .edu
I believe its the first answer
