What does the contact hypothesis say?

basically the contact hypothesis says that groups can learn to get along with each other if they all work together .

the contact hypothesis has been described as one of the best ways to improve relations among groups that are experiencing conflict.

the service industry in the united states grew in the late 1800s. what was one effect of that growth?

the number of people with jobs in factories as unskilled workers decreased.

the number of people with jobs in factories as unskilled workers increased.

the middle class grew as people took jobs as clerks, lawyers, and teachers.

the middle class shrank as people left jobs as clerks, lawyers, and teachers.

answer; (b); the abolitionist movement;