Answer:
B. Unions are harmful because they encourage violence
Explanation:
The poster shows groups of workers that look as if they are causing destruction and violence. With the figure on the right, it seems they are the ones to put out this violence, so you can say this poster is going against the creation of Unions.
Thomas Edison invented the light bulb. (B)
North gets:
California admitted as a free state
Slave trade prohibited in Washington D.C
Texas loses boundary dispute with New Mexico
South gets:
No slavery restrictions in Utah or New Mexico territories
Slave holding permitted in Washington D.C
Texas gets $10 million
Fugitive Slave Law