Immigrants were most likely unable to speak English well or at all. Wealth and status amongst immigrants were also a determining factor. Wealthier immigrants would have been able to make better lives for themself because their money would’ve given them opportunities the poorer immigrants would not have. Overpopulation also affected immigrant life as well as housing issues and the most pressing of all, discrimination. Besides being new to the land and unable to really speak the language in North America and coming from different economic statuses, they also had to deal with racism, prejudice, and even religious discrimination due to the heavy Protestant population at the time.
"I Have a Dream" is a public speech that was delivered by American civil rights activist Martin Luther King Jr. during the March on Washington for Jobs and Freedom on August 28, 1963, in which he called for civil and economic rights and an end to racism in the United States.
I think the statement that describes the cause of the Cuban Missile Crisis is letter D. The Soviet Union set up missiles in Cuba and aimed them at the United States. I hope you are satisfied with my answer and feel free to ask for more if you have more clariffications