In which kind of economic system does the government control the business that effect more citizens, such as railroads and electronically power

Monopoly. Although most monopolies are illegal, the ones that exist in today’s society is government regulated. These are things such as the electric company, or even NASA (although spacex has been trying to enter the industry. This is difficult as there are extremely high barriers in a monopoly).

answer: c  

the factory goes out of business, causing the workers to lose their jobs.

explanation:

chemicals that are toxic to plants