Which historical detail best helps clarify a reader’s understanding of the information in the excerpt?

1which is an example of a claim? a . . never give up on a goal or dream just because someone tells you it’s impossible. b people said no one could scale mount everest, but in 1953, sir edmund hilary and tenzing norgay gazed down upon the world from its summit. c a rude remark is like a piece of litter in a national park—the best thing to do is throw it in the garbage where it belongs. d 1903, orville and wilbur wright made the first sustained powered flight in a heavier-than-air machine. review the sentence. actually, we the chair in spain about 20 years ago. 2 which correctly completes the sentence? actually, we the chair in spain about 20 years ago. buy buyed bought boughten

"the beginning of the massai" which excerpt best justifies this conclusion

What is the italicized part in the sentence , all of the operators are efficient.