Answer:
high, upper-middle, lower-middle, and low income countries.
Explanation:
Horses, Cows, and Pigs.
Maize and Potatoes
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Answer: c. self-fulfilling prophecy
The term ‘self-fulfilling prophecy’ (SFP) came about in 1948 when Robert K. Merton described ‘self-fulfilling prophecy’ as a dynamic process where in a false conception creates a new behavior in a person and makes the original false conception true.
SFP is also known as ‘Oedipus effect.’