The majority of immigrants and rural migrants who moved to american cities at the turn of the twentieth century became part of

a. middle class.
b. working poor.
c. wealthy class.
d. working rich.

I believe the answer is: working poor

Working poor refers to the group of people who are in poverty level due to lack of work hours/opportunity. The majority of immigrants came to American cities to gamble their opportunities and hope that they managed to get job in recently established manufacture companies. Only some of them able to got the jobs.

B :  The Working Poor 

Hope this helps 

Buddhism as a religion started in the 7th century BC. Buddha Sankhyamuni was the first person that started spreading Buddhism among the common people. He was himself enlightened under a Bodhi tree while he was living in a forest after denouncing his lavish life as the princess. Buddha started showing the common people the path to enlightenment and thereby spreading the religion of Buddhism. Today Buddhism is considered the 4th most practised religion around the world. This shows the popularity this religion has gained with passing time.