Various states often promulgate laws that can differ from one another. Some contracts include a provision that dictates that if a dispute and litigation were to arise out of the contract, then the case should be evaluated according to the law of a particular, named state $($e$.$g$.,$ California$).$ Such provisions are known as $\_\_\_\_\_\_\_\_\_.$Group of answer choicesoption$-$to$-$exercise clausesfederalism clauseschoice$-$of$-$law clauseschoice$-$to$-$withdraw clauses