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: