From what country did 300 men migrate from that was taxed for the gold they found?

payments were made after the 1940s.

in the 1980s, a commission held investigations and made recommendations.

answer: in 1900, there were no "workplace safety laws"!

explanation: at the beginning of this century, workers in the united states faced remarkably high health and safety risks on the job.

a century ago in 1900 about three hundred out of every one hundred thousand miners were killed on the job each year.

[industria] developments occurred within a legal and regulatory climate that diminished employer’s interest in safety. as a result, americans developed production methods that were both highly productive and often very dangerous.

the answer is option c: 1300