Compare a CMO with A$,$ B$,$ Z to a CMO that has the same tranches but is backed by a larger pool of mortgages $($and therefore has a residual$).$ In a CMO with a residual:

choose all that apply

Tranche A has a shorter duration and less inflation$/$interest rate risk

Tranche B has a shorter duration and more inflation$/$interest rate risk

Tranche B has a longer duration and more inflation$/$interest rate risk

Tranche Z has more inflation$/$interest rate risk

Tranche Z has less inflation$/$interest rate risk