The main reason why we know more about Hammurabi's Code than other early forms of law is because Hammurabi's Code was the first (or at least one of the first) codes of law to be permanently inscribed on stone instead of issued on paper or through word of mouth.
Answer:
For #4, answer C. I'm not certain #3 can be answered with the text provided.
Solid evidence, to be proven guilty
The ways markets allocate resources efficiently and fairly. There are 8 methods: 1) Market Price, 2) Command, 3) Majority Rule, 4) Contest, 5) First-come, first-served, 6) Lottery, 7) Personal characteristics, 8) Force
Trial by jury is a right for a United States citizen