Calculate the effective rate of interest for the first year, if the rate of interest is $16\mathrm{.}1\%$ p$.$a$.$ compounded semiannually? $($rounding the answer to $6$ significant decimal figures$)$

a$.0\mathrm{.}167480$

b$.0\mathrm{.}161616$

c$.0\mathrm{.}181523$

d$.0\mathrm{.}170984$

e$.0\mathrm{.}173428$

Clear my choice