The following provides data for an economy in a certain year.

Consumption expenditures$50Imports$40Government purchases of goods and services$20Construction of new homes and apartments$30Sales of existing homes and apartments$40Exports$50Government payments to retirees$10Household purchases of durable goods$20Beginning-of-year inventory$10End-of-year inventory$20Business fixed investment$30

Given the data, compute the government purchases component of GDP.

Select one:

a.$20

b.$40

c.$30

d.$10