The choice activity is accessible through the Add an activity or resource menu. With this activity you can quickly create a simple poll for your class.
Choice is best suited to creating activities with only a few questions. It immediately generates a graphical output of the class responses which can be shared in real time with the class in a computer classroom or online setting (very similar to clicker devices). For activities involving numerous questions, you may wish to consider the questionnaire (survey) or quiz activities.