I believe the answer is C.
What it means is that he wouldn't have been able to get where he got if it hadn't been for the scientific achievements of his predecessors. If it hadn't been for these "giants" that enabled him to see so far, he wouldn't have been able to make all the discoveries that he did. For those coming after him, he was a giant that enabled them, and so laws and theories and scientific knowledge always increases based on the knowledge before it.
Answer:
Arturo Castro has a faster mile time than I do.
Answer:
D
Explanation:
The reason that D is the correct answer is because it directly supports and gives some more information about the topic sentence. For example, Option A only gives a statistic for an entirely different topic - it doesn't have anything to do with gathering the recipe materials. Option B talks about making an omelet, however, the topic sentence does not talk about making omelets. Lastly, C is not the right answer because it says the word "Finally" which means that it is a concluding sentence and the concluding sentence does not develop a topic sentence. Therefore, D is the correct option.