As the 1800s progressed, demands for labor reform increased mainly because hiring practices were not standardized and were unfair. wages were not based on workers experience. working conditions were horrible. firings were without cause.

## Step 1<br />The problem is asking us to identify the main reason for the increased demands for labor reform in the 1800s. The options provided are:<br />- Hiring practices were not standardized and were unfair.<br />- Wages were not based on workers' experience.<br />- Working conditions were horrible.<br />- Firings were without cause.<br /><br />## Step 2<br />To solve this problem, we need to consider the historical context of the 1800s. This was a time of rapid industrialization and urbanization, which led to the rise of factories and mass production. This, in turn, led to a significant increase in the number of workers, many of whom were subjected to poor working conditions.<br /><br />## Step 3<br />The working conditions in factories during this time were often dangerous and unhealthy. Workers, including children, were subjected to long hours of labor, low wages, and unsafe environments. This led to a significant increase in the demand for labor reform.<br /><br />## Step 4<br />While the other options may have contributed to the demand for labor reform, the most significant factor was the horrible working conditions. This is because the poor working conditions directly affected the health and well-being of the workers, which was a primary concern for labor reformers.