Which of the elements are essential for an effective presentation? 1. It’s beautiful to your audience. 2. It has a clear objective. 3. It includes many pictures. 4. It has a signature. 5. It’s well – rehearsed. 6. It must be complex. (A) 1 and 3 (B) 2 and 5 (C) 3 and 6 (D) 4 and 6