public class StepInfoResponseMessage 

// Send a step response to Workflow Manager Server with additional information required for the step to continue.
// In this example, provide an answer response to a QuestionStepInfoRequiredMessage so that the Question step can complete.
// The response must include the jobId, stepId, and other information pertinent to the step.
var stepInfoResponseMessage = new QuestionStepInfoResponseMessage()
{
  JobId = jobId,
  StepId = stepId,
  QuestionResponse = 1,
  Comment = "Selected question response option 1"
};
var stepResponse = new StepResponse()
{
  Message = stepInfoResponseMessage
};

var notifManager = WorkflowClientModule.NotificationManager;
notifManager.SendStepResponse(stepResponse);