The number $x=-0\mathrm{.}0625$ using fixed point

representation with $8$ bits in the integer

part and $4$ bits in the fractional part is:

None

$10000000\mathrm{.}0001$

$11111111\mathrm{.}0001$

$11111111\mathrm{.}1111$

$10000000\mathrm{.}1111$