Final answer:
To improve your Developing of Ideas score, ensure each point is supported with evidence and examples, and use an outline to organize your essay logically.
Step-by-step explanation:
When looking to most likely help your score on Developing of Ideas, option A, Checking that you've supported every point you made, is critical. This involves ensuring that each point or claim in your essay is backed by appropriate evidence and examples and is thoroughly explained to demonstrate its relevance to the main topic. Consistently supporting your points strengthens the development of your ideas within your paragraphs.
Beyond just checking the support for your points, organizing your essay effectively is also essential. Creating an outline helps maintain a logical flow of information and makes it easier for your readers to follow your argumentation. Option B alludes to this by suggesting that making an outline can keep your points in a logical order. Although proofreading for grammar and punctuation, as well as varying sentence structure, are important for overall writing quality, they do not directly contribute to the development of ideas as much as supporting points and organizing the essay do.