post https://api.ottolearn.io/v1/rest/activityDraft()/answerDrafts
Add an Answer to an existing Activity draft. A minimum of 2 Answers are required in order to successfully publish an Activity. Each activity must have one correct answer. A valid Activity Draft ID is required in order to add an Answer draft. Activity draft ID's can be found by listing Activity drafts, or in the response object after creating a new Activity draft.