1. Enabled building of factory away from rivers powered machines = steam power (steam power enabled for factories to be established anywhere. It also provided substantial potential and could be utilized to power huge machines )
2. Developed system of interchangeable parts; increased production =Eli Whitney (at his arsenal Eli Whitney discovered the use of interchangeable elements and the milling device)
3. Made putting together of goods piece by piece; increased production greatly = assembly line (an assembly line is a construction process (oftentimes called a progressive machine) in which parts (interchangeable parts) are added as the semi-finished assembly passes from workstation to workstation where other parts are attached in series until the final assembly is designed. )
4.provided a tough, efficient building material for industrial purposes = steel (steel is an alloy of several metals but it consists of more iron than other minerals. Steel is solid and potent than iron)
Bull Connor was the Commissioner of Public Safety in Birmingham in the 1960s and led a violent crackdown on civil rights protestors.
This violent crackdown included the siccing of police dogs on protestors and the use of fire hoses on protestors. National attention turned to the treatment of the protestors when news reports showed video of how the protestors were being violently attacked by the police and public opinion turned against Bull Connor.
The correct answer would be D. footnote
