Working conditions mean, the way a company or a job place their enviroment. Cleanliness, the way they treat their employees,coworkers and customers, management, etc.
The correct answer should be Leonardo did not intend for his inventions to do harm.
I saw on the Internet that B and D are incorrect, so we have to choose between A and C. A is also incorrect because Leonardo had much greater plans for his inventions that simply to investigate the properties of snow. This leaves us with C as the correct answer - he wanted to advance science, rather than create a bad invention.
What tone does the author take when she says in paragraph 53, “ that sweat shop was a bitter memory but a good school.” What does she mean by this?
