Is a set of official government statistics on aggregate economic activity in production, income, investment and savings.
a. gdp
b. gnp
c. market value
d. national income accounting

Letter A. It is Gross Domestic Product or GDP.  All the factors listed fall within the Gross Domestic Product.  It covers all economic activity within a country.  It also deals with the spending activity of consumers in a country.  It can be computed either by the year or four times a year.

To solve their problems, mesopotamians used irrigation, a way of supplying water to an area of land. to irrigate their land, they dug out large storafe basins to hold water supplies these ditches brought water to the feilds. to protect their feilds from flooding, farmers built up the banks of the tigris and euphrates.hope ths !

Ithink it is b  employees