A GDP deflator is the price index measuring the changes in the prices of all new goods and services produced in the economy that is option B is correct.
GDP or Gross Domestic Product refers to the market value of all final goods and services produced and sold within the country in a financial year. There are three types of GDP:
GDP Deflator is the ratio of Nominal GDP and Real GDP and multiplying the ratio with hundred.
GDP Deflator = (Nominal GDP/ Real GDP) * 100
GDP deflator is basically that value which gives reflection of inflation. Hence, it is also called as Implicit Price Deflator. Some government programs and employment contracts rely on GDP price deflator to adjust the number of benefits or salaries provided to its people.
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