Answer:
Shaping.
Explanation:
Shaping (or successive approximation) is a teaching technique that involves a teacher (in this case, Sarah's parents) rewarding a child as she or he successfully improves the acquisition of a target skill.
Like África is a poor country or Romania because they don’t have much nice places to look at and the houses are old and broken and there’s a higher population of poor people.
I believe it’s C. Businesses can increase their opportunity costs
Hope this helps
Is know as consumer misbehavior .
