Type it in English please
Please clarify the question, and add more information before I can answer that, I’d need to know the amount of carbon atoms.
The answer is C, because there are only so many elements therefor you can have only so many compounds.
Answer:
The aim of layout is both to present information in a logical, coherent way and to make the important elements stand out. An additional, more understated benefit, is that a well-designed layout can make the content easier to understand.