'Change the problem definition so the answer is Option 2'

def redefine_option_problem(self, problem_url_name, correct_answer=OPTION_1, num_inputs=1, num_responses=2):

    factory = OptionResponseXMLFactory()
    factory_args = self._option_problem_factory_args(correct_answer, num_inputs, num_responses)
    problem_xml = factory.build_xml(**factory_args)
    location = InstructorTaskTestCase.problem_location(problem_url_name)
    item = self.module_store.get_item(location)
    with self.module_store.branch_setting(ModuleStoreEnum.Branch.draft_preferred, location.course_key):
        item.data = problem_xml
        self.module_store.update_item(item, self.user.id)
        self.module_store.publish(location, self.user.id)
