In the introduction to his book great astronomers, robert stawell ball states, "the history of astronomy thus becomes inseparable from the
history of the great men to whose labours its development is due." based on what you read in the ptolemy section, how does ball develop and
refine this central idea in his book?
oa by relating anecdotes about specific astronomers and their relation with each other
b. by providing detailed historical backgrounds about the eras in which each astronomer worked
c. by providing biographical information about specific astronomers and their discoveries
d. by telling dramatic, engaging stories about the lives and works of ancient astronomers

You have the passage ?

Yes, his opponents get a head start of three hours against Zaroff.

In the introduction to his book great astronomers, Robert stawell all develop and refine the central idea in his book by providing biographical information by specific astronomers and their discoveries. With it, he also connect it to their contributions to the history of great men

hope this helps

D is the best answer because Ptolemy was an ancient astronomer who had a great many of works and is considered by today's standards to be a pro-astrological authority of the highest magnitude which is a pretty high and mighty standard considering. Also it just uses Ptolemy and describes him as a highest achievement astronomer and tells his story. He does not tell much about the era otherwise. C could also be a candidate because he is a specific astronomer and it talks about discoveries but A and B are not completely relevant.

Based on the scenario,
The way that Robert Stawell Ball develop and refine the central ideas of his books is 
He is providing biographical information by specific astronomers and his discoveries

hope this helps

The answer to this question is providing biographical information by specific astronomers and his discoveries.

C

Explanation:

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.

Ball develops and refines this central idea in his book by telling dramatic, engaging stories about the lives and works of ancient astronomers

Explanation:

In the introduction of "Great Astronomers" by Robert Stawell Ball, he talks about the achievements of people in history that were related to astronomy and the sciences that helped to develop it, a very particular case in this introduction is the story of Claudius Ptolemy and how his life and achievements were fundamental for astronomers.