An ideal gas undergoes a constant$-$temperature process starting with a pressure of $2105$ Pa and a volume of $6$ cm$3.$ Which of the following might be the pressure and volume of the final state?

Select answer from the options below

$1105$ Pa and $10$ cm$3$

$4105$ Pa and $4$ cm$3$

$6105$ Pa and $2$ cm$3$

$3105$ Pa and $6$ cm$3$

$8105$ Pa and $2$ cm$3$