It is necessary to cite a source because _____. the idea, work, or material is someone else's it is proper to give the author credit it is academically correct all of the above
The reason is that the idea which the person is deriving from the work is someone else's which means not giving credit to the person is ethically and according to academic rules are incorrect. It is also important because it helps the reader to assess the authenticity of the paper. So the statement is correct.
