Which of the following is considered subnet ID $($SN$.$ ID$)$ for a sub$-$network with $/25?$

a$.120\mathrm{.}60\mathrm{.}44\mathrm{.}192$

b$.120\mathrm{.}60\mathrm{.}44\mathrm{.}32$

le $120\mathrm{.}60\mathrm{.}44\mathrm{.}128$

a$.120\mathrm{.}60\mathrm{.}44\mathrm{.}54$

e$.$ None of the choices