fill has the following annual returns for an investment she made:

Year $1$: $12\%,$ Year $2$: $(-5\%),$ Year $3$: $8\%,$ Year $4$:$14\%$

What is the geometric mean for this investment?

$8\mathrm{.}25\%$

$7\mathrm{.}91\%$

$7\mathrm{.}25\%$

$6\mathrm{.}98\%$