All supervisors must complete a minimum of two training sessions in supervision and leadership. They must first complete one introductory course followed by at least one advanced course. Introductory Course 1: Foundations in Supervision Introductory Course 2: Supervision Fundamentals Advanced Course 3: Advanced Supervision and Leadership Advanced Course 4: Innovations in Leadership Course 5: Elective in Supervision Supervisors that complete course 1 cannot take course 2. Supervisors cannot take course 3 or 4 unless they have completed course 1 or course 2. Supervisors can only take course 5 if they have completed courses 2 and 3. Based on the above information, which of these statements MUST be true? radio_button_unchecked Supervisors that complete course 1 can then take course 2. radio_button_unchecked Supervisors that complete course 2 can then take course 4. radio_button_unchecked Supervisors that complete course 3 can then take course 5. radio_button_unchecked Supervisors that complete course 3 can then take course 1. radio_button_unchecked Supervisors that complete course 1 can then take course 5