They would travel on foot
Here you don't actually need to fully solve it to know the answer, because it is multiple choice. Just ignore the fractions and subtract the whole numbers: 8 - 13 = -21. So, the answer will be -21 and then a fraction. Looking at the answer choices, A matches this. So, A is the answer
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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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I’m pretty sure that the answer is a