Why did John Birley not tell the truth about life working in the mill to the inspectors?

the answer is c, all the other options are things they are known for.

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he came up or eelped come up with the jersy plan

a. poison gas was sprayed over battlefields by airplanes to weaken enemy positions before major attacks.

once he became head of state in 1915, venustiano (his name was not victoriano) carranza was able to implement some of his ideas, such as the drafting and the promulgation of the mexican constitution of 1917, which is still the current constitution of that country.