If country a is an agricultural country and country b has many cities and factories it would make sense for

if country A is an agricultural country and country B has many cities and factories it would make sense for

- country A to specialize in growing wheat

- country B to specialize in making tractors

Both these countries have what is referred to as a competitive advantage due to their geographical features.

Agricultural country tend to be able to produce agricultural product in cheaper price while countries that have many cities tend to be able to produce manufactured goods on cheaper price. After focusing each of their own products, country A and Country B could conduct a trade so both their needs can be fulfilled.

the correct answer is b, "fertility rates are increasing, so populations will grow more quickly in the future."