Check all that is true about the SDA default model:

SDA function for defaults takes the same shape as a PSA function for prepayments

SDA stands for standard default assumption

The SDA takes into account maturity of the mortgage

If you know the beginning pool balance and assume a 200% SDA, you can figure out what the CDR is for each month

If you know the beginning pool balance and assume a 200% SDA, you can figure out what the CDX is for each month

Under the 100% SDA assumption noone defaults when their mortgage is a few months away from being paid out