#1 The Civil War proved to be a remarkable important moment in the history of photography. A The Civil War proved to be a remarkable important moment in the history of photography.
B The Civil War proved to be a remarkable, important moment in the history of photography.
C The Civil War proved to be a remarkable, important, moment in the history of photography.
D The Civil War proved to be a remarkable important, moment in the history of photography.

(btw this is english & social studies)

this question is grammatically incorrect and is illegible to me so i can not answer.

we need more information in order to answer.

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