I believe the answer is d
Answer:
by providing biographical information about specific astronomers and their discoveries
Explanation:
Ball has written a book about the great astronomers and reveals that astronomy would not be what we know today without the lives of these men who have contributed so much to the development of this science. During the development of his book, Ball can refine the central idea by providing biographical information about specific astronomers and their findings, thus proving how important these men were and how they influenced astonomy.
With the exception of option A, all sentences are written in imperatives (verb structure used for instructions and/or oders) Therefore, in these examples, the <em>call to action</em> is explicit, not implicit. Your best answer is option A because, apart from the fact that it's the only viable one, here you have a persuasive example by consensus. Simply put, instead of telling you directly to do something, it's telling you that everyone is doing it, which is likely to make you want to do it if you want to be like them.
B Beacause Trees Cannot hear
