Answer: Bananas; Lower opportunity cost
Explanation:
In country A:
Opportunity cost of producing a banana = [tex]\frac{5}{25}[/tex]
= 0.2 tomato
Opportunity cost of producing a tomato = [tex]\frac{25}{5}[/tex]
= 5 bananas
In country B:
Opportunity cost of producing a banana = [tex]\frac{6}{18}[/tex]
= 0.33 tomato
Opportunity cost of producing a tomato = [tex]\frac{18}{6}[/tex]
= 3 bananas
Hence, workers in country A should specialize in the production of Bananas because the opportunity cost of producing a banana is lower than the country B.