Circle the bold print word that makes each statement true. 
 a.	Africa is a continent with few/many valuable natural resources.
 b.	Factories, machinery, and technology all make up capital goods/human capital. 
 c.	A country that invests in educating and training people will have an increase/decrease in their Gross Domestic Product (GDP). 
 d.	If a country has a low GDP and a low school enrollment rate, they would have more/less need for educational improvements.