Need help with the three questions below.

1.) Ensuring that high-quality public education is freely available to all children is one of the most important ways that a country can:

A. Increase its stock of human capital

B. Decrease its stock of human capital

C. Decrease its productivity

D. Increase its foreign direct investment

2.) Foreign income is defined to be income earned:

A. By a nations firms when they operate abroad

B. On investments made abroad

C. By those living outside a country

3.) If tastes for foreign goods and services go up, then we would expect import to:

A. Increase

B. Remain constant

C. Increase and then sharply decrease more