问题如下：
Residential mortgages that may be included in agency RMBS are most likely required to have:
选项：
A. a maximum loan-to-value ratio. Loans below this maximum level could be included in the asset pool.
B. partial payment on the mortgaged property.
C. a maximum percentage down payment.
解释：
A is correct.
Conforming loans that may be securitized in agency RMBS have a maximum loan-to-value ratio, minimum percentage down payments and insurance on the mortgaged property.
老师BC选项是什么意思？讲义哪里涉及了么？
