To determine how paragraphs 3–5 contribute to the central ideas in the text, it's important to analyze their content and function within the overall argument or narrative.
If the paragraphs provide a logical flow from one point to another and build upon or clarify the previously discussed topics, the correct response would be that "They transition between two ideas." This would indicate that the paragraphs facilitate a smooth transition in the narrative or argument.
If they challenge a previously mentioned viewpoint or argument effectively, then "They dispute an opposing view" could be a suitable answer.
However, without specific information on the content of paragraphs 3 to 5, the most likely contribution, given the options listed, would be along the lines of transitioning between ideas, as it's a common structure in effective writing to help guide readers through a progressive argument or narrative.
So, the answer is: They transition between two ideas.