The three characteristics that apply to an effective opening statement are:
- Logical - An effective opening statement should be based on clear, logical reasoning.
- States the writer’s opinion - Including the writer's perspective can help set the tone and direction for the argument or discussion.
- Includes a call to action - A strong opening can motivate the audience to think, feel, or act in a certain way.
Therefore, the correct answers are "logical," "states the writer's opinion," and "includes a call to action."