Which of the Following Is True for Cities in South

Which of the following is true for cities in South Asia as well as for cities in Greece and China around 500 BCE?

A) Population declined because of warfare and invasion.
B) Accounting and financial record keeping had not yet emerged,which limited the growth of financial transactions.
C) City dwellers,compared to rural peasants,had less material wealth.
D) Coins came into use around this time,which improved commerce in urban areas.