Answer:
C.NASA
Explanation:
Katherine Johnson works at the Langley Research Center in Hampton, Virginia in 1961, alongside her colleagues Mary Jackson and Dorothy Vaughan. All of them are African-American women; the unit is segregated by race and sex.
The best and most correct answer among the choices provided by the question is the third choice "natural monopoly."
A natural monopoly<span> is a distinct type of </span>monopoly<span> that may arise when there are extremely high fixed costs of distribution, such as exist when large-scale infrastructure is required to ensure supply.</span>
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Answer: Transformation in thinking that occurred in the 1500's and 1600's caused by scientific observation, experimentation, and questioning of traditional opinions. It changed the way Europeans looked at the world. What did the Greek astronomer Ptolemy believe? He believed the Earth was the center of the universe.
Explanation:
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