Answer:
1. Jesse Owens is one of the greatest athletes ever because he rose from humble roots and changed the world.
Explanation:
Among the options given in the question, the correct sentence is option 1. This is after checking the use of punctuation and other aspects of what makes a sentence correct.
In sentence 1, there is no use of the comma, whereas sentences 2 and 3 both contain commas after the word "ever", which is not necessary. The sentence is free-flowing and presents a simple fact about Jesse Owens. Moreover, it contains one independent clause and so the use of a comma is unnecessary.
Thus, the correct answer is option 1.
