"b. bits of pottery and clay" "c. mounds containing the remains of cities" and
<span>"d. detailed paintings showing life in Sumer" would be the best options, since stories passed down were not recording in any way that could be findable. </span>
According to Adam Smith, "the Invisible hand" was the "supply and demand" aspect of the market system, in which the amount of goods produced was dependent on the amount of goods demanded.