To develop a topic means to explore and expand on it in a way that deepens understanding and engages the audience. Among the options you've provided, the most fitting response would likely be:
It means considering multiple perspectives to create an interesting thesis statement.
This captures the essence of topic development, which involves examining various viewpoints and angles that can inform and enrich the main argument or thesis of the piece. Additionally, it suggests a thoughtful approach to presenting information that can stimulate interest and discussion.