Answer:
Helen is the wife of the Greek prince Menelaus. She was kidnapped by the Trojan prince, Paris, which then started the Trojan war because Paris refused to give her back.
Explanation:
The best answer is A. Organizing is defined as putting something in systematic order. It is a systematic process of structuring something in order for a given goal. The other choices given don't seem to fit the meaning given.
The correct answer is D. A concrete example is one that provides a clear situation in which the abstract idea, in this case the author's argument, is exemplified. This option not only prepares the reader for the example, but also gives specific details about what could be regulated.