Newspaper and magazine writers who exposed the ills of industrial and urban life, fueling the progressive movement, were known as: a. freelancers. b. muckrakers. c. yellow journalists. d. trustees. e. social reformers.

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."

the viking voyages took place during the middle ages, which was about this time. 500 to 1350. the viking voyages took place during the middle ages, which was about this time.