To accurately determine how the author develops the central ideas of the article, we would need to consider the content of the article and the main focus she takes on the behavior of magpies.
If you're exploring the motivations behind magpies' behaviors, then option A could be correct. If the article is heavily focused on research findings, then option B may be the best choice. If there is a notable comparison between urban and rural magpie behavior, then option C would make sense. Finally, if the article discusses a recent change in magpie behavior towards humans, option D would be the right answer.
Based on the options presented, if you have access to the article and can provide more context or details, I can help you better identify the correct choice.