Determine the maximum number of subnets and addresses available for $10\mathrm{.}255\mathrm{.}0\mathrm{.}0/17.$

Maximum subnets $32768$; Maximum Addresses $32766$

Maximum subnets $131072$; Maximum Addresses $131070$

Maximum subnets $2048$; Maximum Addresses $2046$

Maximum subnets $4096$; Maximum Addresses $4094$