GMAT Critical Reasoning (CR) | Re: Businesses are suffering because of a lack of money

Businesses are suffering because of a lack of money available for development loans. To help businesses, the
government plans to modify the income-tax structure in order to induce individual taxpayers to put a larger
portion of their incomes into retirement savings accounts, because as more money is deposited in such
accounts, more money becomes available to borrowers.

Conclusion: More money becomes available to borrowers.
Assumption: The money is used by businesses only.

Which of the following,
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