Answer:
A.They increased defaults and caused large losses at financial institutions.
Step-by-step explanation:
'Subprime" mortgages were home homes offered in the early 2000s to borrowers with low and poor credit history. By the time of issues, the interest rates were relatively low, which meant that subprime borrowers who usually attract high-interest rates were approved for mortgages. The demand for housing grew exponentially as borrowers with good and poor credit history alike tool mortgages. The price for houses continued to rise, prompting the Fed to raise the interest rate to contain inflation.
Between 2205 and 2006, house prices collapsed suddenly. Interest rates were rising, but house prices were dropping. Many homeowners were unable to repay their mortgages. The interest and principle there are paying were very high compared to the market value for the homes. There were massive layoffs by subprime mortgage lenders, while others closed down or applied for bankruptcy. The decline in prices implied that the mortgage value was high compared to the market price for houses.