Which research source is an example of a primary source?
a movie about cold war-era chess
a textbook chapter about the cold war
an article about the cold war by an expert
a photograph taken during the cold war era.

a photo from the era

Explanation:

when it was made during or at the evemy, it is a primary source

a, b , d edu 2020

Explanation:

the government paid religious orders to provide basic education to native american children on reservations. in the late 19th and early 20th centuries, the bureau of indian affairs (bia) founded additional boarding schools based on the assimilation model of the off-reservation carlisle indian industrial school.

a reason that was key to coolidge's victory in the 1924 presidental election was that; democratic party supporters were split in the north and south.