Answer:
A. Adding, eliminating, or reorganizing key elements.
Step-by-step explanation:
When you revise an essay, you need to examine every aspect of the essay and remove, alter or add the elements that are necessary to improve your writing. This step usually takes place after you have already written a draft of your essay, and you have a very clear idea of what your final product must look like. When revising, keep in mind what the text will look like to the reader, and try to make the text as readable and accessible as possible.