A customer's current Layer $2$ infrastructure is running Spanning Tree $802\mathrm{.}1$d$,$ and all configuration changes are manually implemented on each switch. An architect must redesign the Layer $2$ domain to achieve these goals:

$*$ reduce the impact of topology changes

$*$ reduce the time spent on network administration

$*$ reduce manual configuration errors

Which two solutions should the architect include in the new design? $($Choose two.$)$