Answer:
The correct answer is option A.
Step-by-step explanation:
In the year 2006, the housing prices in the US were at their peak. But after the bursting of the housing bubble, when the housing prices fell, many subprime borrowers realized that their mortgages were "underwater."
A subprime borrower refers to a person with less than perfect credit rating. Such borrowers are considered to have high default risk, so they have to pay higher interest.
Underwater mortgage refers to the situation when the borrowers realize that the principal amount of their loan is greater than the free market value of the house. It generally happens in cases property values are falling.