题目选项分析

The 2008 mortgage crisis is thought to have been caused in large part by lender behavior changes, which, like the continuously eroding lending standards that saddled numerous borrowers with impossible payments and led to unsustainably high-risk loans, and the mortgage options that allowed homeowners to pay interest alone for a time, after which many unsuspecting borrowers found themselves unable to pay the increased bills that included payments on the principal.

The 2008 mortgage crisis is thought to have been caused in large part by lender behavior changes, which, like the continuously eroding lending standards that saddled numerous borrowers with impossible payments and led to unsustainably high-risk loans, and the mortgage options that allowed homeowners to pay interest alone for a time, after which many unsuspecting borrowers found themselves unable to pay the increased bills that included payments on the principal.