Question: How many different answers did the question "Describe the conversation you had with your previous employer about your mental health, including their reactions and actions taken to address your mental health issue/questions." get?
SQL: SELECT COUNT(DISTINCT T1.AnswerText) FROM Answer AS T1 INNER JOIN Question AS T2 ON T1.QuestionID = T2.questionid WHERE T2.questiontext LIKE 'Describe the conversation you had with your previous employer about your mental health, including their reactions and actions taken to address your mental health issue/questions.'