I don't if this is right but I put c
Plantations
The flat land was good for farming and so the landowners built very large farms called plantations. The crops that were grown were called cash crops because they were harvested for the specific purpose of selling to others.
<span>The United States agreed to leave over a sixty day period.
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Faced by numerous criticism from the Doves,Nixon had to come up with an exit strategy. USA agreed to leave south Vietnam,despite the fact that there was no commitment from the side of the communist regime in North Vietnam.this was evidence in the fact that even after the withdrawal of the USA forces,fighting continued and less than two years later, Saigon fell to communist forces.
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A because i searched it up.
The answer is A, natural selection.
