Which choice fits in the blank in this progressive era timeline?

a. 1903 - helen hunt jackson publishes regarding treatment of native americans

b. 1906 - upton sinclair publishes the jungle, criticizing the working conditions in the u. s. meat processing industry eliminate

c. 1912 - theodore roosevelt publishes the square deal in which he addresses problems in the treatment of american unions

d. 1912 - sir arthur conan doyle publishes the lost world showing the deforestation of the rain forests?

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7 September, 08:56

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Isabella · Answer 1

It is b - 1906 - upton sinclair publishes the jungle, criticizing the working conditions in the u. s. meat processing industry eliminate