Serena's salary is $$120,000$ per year. She contributes $12\%$ of her salary to her $401($k$)$ plan. Her employer matches with $5\%$ of her salary to a $401($k$)$ plan. She also contributes $$2,500$ per year to an IRA.

Serena's annual savings rate is$?$

Question $18$ options:

a$.12\mathrm{.}00\%.$

b$.14\mathrm{.}08\%.$

c$.17\mathrm{.}00\%.$

d$.19\mathrm{.}08\%.$