Which of these is an example of a primary source? the diary of orville wright the encyclopedia britannica the decline and fall of the roman empire, by edward gibbon cloud atlas: a novel, by david mitchell

Option A, the diary of Orville Wright is the right answer.

A Primary source or an original source in the context of history can be divided into two forms known as the Archaeological and Literary sources.

Literary sources include records, manuscripts, autobiography etc., that were written under study. Primary sources serve as an authenticated source of information about the topic. Here option A is the right answer because the diary of Orville  Wright comes under the primary (literary) sources.

Option A, the diary of Orville Wright is the right answer.

Explanation:

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the outcome of 1970 oil crisis in united states was that, they began to search ways on how to reduce oil.

in 1970 was a period when there were energy and oil crisis. those who were major centers for industrialization were forced to keep way from supplying of petroleum.

some of the result of this crisis was economic growth became stagnant because prices of oil surged.

due to the increased prices some countries like mexico and norway benefited.