The influx of immigrants in the united states in the second half of the 19th century most directly led to which of the following?
a. the formation of cultural neighborhoods where people from the same country/region could support one another.
b. the establishment of political reform groups focused on expanding voting rights for immigrants..
c. the failure of the railroad.
.d. the passage of the sherman anti-trust act

A. The formation of cultural neighborhoods where people from the same country/region could support one another.

Explanation:

This is the way places such as Chinatown and Little Italy were born in large American cities. Immigrants tended to look for fellow immigrants from their own country of culture as a way to find mutual support, solidarity.

i do believe that the correct answer is   (technical reasoning); luck

explanation:

jacksonian era promoted strength of the presidency and executive branch at the expense of congress. it also sought to broaden the public's participation in government. the jacksonian's demanded to have elected judges, instead of appointed judges, and rewrote many state constitutions to reflect the new values. hope this ! if you did find it would you mind giving me brainliest? : )