The Following Table Provides Data for an Economy in a Certain

The following table provides data for an economy in a certain year. $$\begin{array} { l r } \text { Consumption expenditures } & 1,000 \\\text { Imports } & 600 \\\text { Government purchases of goods and services } & 700 \\\text { Construction of new homes and apartments } & 500 \\\text { Sales of existing homes and apartments } & 600 \\\text { Exports } & 500 \\\text { Government payments to retirees } & 200 \\\text { Household purchases of durable goods } & 300 \\\text { Beginning-of-year inventory } & 500 \\\text { End-of-year inventory } & 600 \\\text { Business fixed investment } & 300\end{array}$$ Given the data in the table, compute the investment component of GDP.

A) 300
B) 400
C) 800
D) 900