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A) A time of sever decline in business activity is your best answer
The Great Depression was the result of an economic downturn that led to the mass-fire of workers, which plunged the economy even lower, forcing many businesses to shut down. This was solved through the progress of Franklin D. Roosevelt and his "New Deal"'s, as well as the start of World War II.
~<em>World on Fire</em>
A disability insurance is a way of making sure that your income will not be threatened by your inability to work: in other words, if you fall sick or suffer an injury, you don't need to worry that you will loose money.
The correct answer is b. You lose your job because of an injury or illness.
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