It was "B. Philippe de Vitry" who was a Medieval composer and was also a politician and author famous for his writings on music theory, since at the time not many people knew the fundamentals of such theory.
(A) recall any state official from his/her position
I think it is a, correct me if im wrong
To prevent the spread of communism.
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This statement is definitely TRUE, as the biggest negative effect of the industrialization was the impact on the environment. Many companies that supported industrialization did not push their weight to pay damages for the environmental harm which was caused because of their factories and so on. And after all, It led to extinction of species and spread of pollution.
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