To determine how paragraphs 3–5 contribute to the central ideas in the text, it’s important to consider how they relate to the surrounding content.
If the paragraphs serve to link concepts or build upon the main ideas presented in the text, then they likely "transition between two ideas." On the other hand, if they introduce an entirely different topic, connect unrelated concepts, or argue against opposing viewpoints, the answers might differ.
Without the specific text to reference, I would suggest that based on common paragraph contributions, paragraphs 3–5 most likely "transition between two ideas," as this is a common role for such sections in structured writing.
However, please review the text to ensure this aligns with its content.