$$Check all that apply.

From a borrower$$s perspective, adjustable$-$rate mortgages $($ARMs$)$ are considered riskier than traditional fixed$-$rate mortgages, because mortgage payments might increase without an increase in income.

Investors across the globe were buying mortgage$-$backed securities for the rate of return that these securities were generating. Most of these investors chose to be ignorant of the risks involved in such investments.

The total amount of risk embedded in the securities created by bundling mortgages did not change. The securitization and resecuritization processes led to a distribution of total risk among different types of collateralized securities$.$

Borrowers who met certain requirements for mortgages, such as minimum income level relative to the total mortgage amount, could obtain mortgages that were qualified to be securitized$.$ Such mortgages were called subprime, or Alt$-$A mortgages.