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1. Coliseums and roads are not built for people to get water from. The Romans used science and mathematics to build aqueducts to make it easier to access water and improve sanitation. The answer is A: aqueducts.
2. C and D don’t really answer the question. It’s more of roads and bridges helping improve trade and communication. The answer is A.
3. B and D are definitely not the correct answers. Romans were not the first to use the interpretation of law by jury, but they did make the right for the accused to face the accuser. The answer is A.
4. Paul was the one who spread Christianity across the Roman Emilre. He was a tireless traveler and spent time talking about the religion to other people. The answer is D: Paul.