Answer:
races were of different lengths.
Explanation:
According to the author, stadion is the 184-metre sprint, the long distance race was of 3680 metres/4024 yards and the hippios was a middle distance race of 1093 yards.
Stadion was the most prestigious of all the events at Olympia
The author includes details comparing races to show that races were of different lengths.
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B is the most likely answer
I would go with B, or Ways to build immunity to diseases. Why? Well, just by using the word biology, we can use process of elimination. The prefix “bio” means life, so C and D already would be out. The suffix “ology” means the study of, so the word biology means the study of life. Because biology often has to do with diseases and finding cures to sustain human life spans, the only logical answer would be B. A would make no sense in terms of biology.
