In the following scenario, which historical lens is being applied? why do you think so?

the influx of unskilled irish immigrants into new york city in the 1840s and early 1850s drives down wages for other workers at the low end of the salary ladder.

Economic lens

Explanation:

In this statement, the historical lens that is being applied is an economic lens. An economic lens is one in which the focus is placed on the underlying economic conditions of a situation. In this example, the influx of Irish immigrants into New York City had many different social and political dimensions. However, the author is focusing on the economic dimension, as he discusses how their presence drove wages down for other workers.

the answer would be c

it should be a. song dynasty’s civil service examination system created an administrative bureaucracy manned by the landed aristocracy.