Answer:
Businesses must have been instructed by the Government to do so. There is certainly more money in business and industry, and people seldom want to teach after completing their studies. And now it is mentioned that businesses are even providing loans to people who are interested in teaching during their off-hours. Well, they are paying incentives, and that proves that people are not interested otherwise. And hence, this scenario does illustrate scarcity.
The answer to why is mentioned in the above paragraph, and it is definitely why, and not, "why not".
Step-by-step explanation:
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