Answer:
A, B and C.
Explanation:
The options which contain a reason why cities are formed and its influence on culture are:A. They create opportunity, B. Life moves faster in the city and C. They form around business needs. In cities they offer a wider selection of goods and services, which means that they aim to be succeeded in some businesses. Also, cultures and ethnicities are mixed more in cities, as people from many different regions and move into cities to chase new opportunities.