Answer:
Specialization
Step-by-step explanation:
Specialization is a term in the political economy that is used to describe the propensity of nations to focus on the production of a particular commodity, that can be used to trade for other needed commodities amongst other nations.
Instead of producing all commodities, they produce a surplus of a commodity that is cheaper for them.to produce and then trade it different commodities of other nations with a surplus.
Hence, in this case, given that Country A has a climate well-suited for agriculture, but few energy resources. It should SPECIALIZE in Agriculture while Country B that is arid but has plentiful access to oil should SPECIALIZE in the production of oil or Energy.
Therefore, both countries will benefit through the SPECIALIZATION of Trade.