All options are correct.
Referencing sources is important for several reasons:
-
To give context and evidence to your arguments: Proper referencing provides credibility to your claims by showing that they are supported by established research or expert opinions.
-
So that your instructor can locate all of your sources: Clear references allow readers, including instructors, to find the original materials you used, facilitating further exploration of the topic.
-
To indicate which ideas or information you have borrowed: Referencing appropriately attributes ideas to their original authors, acknowledging their contributions and avoiding plagiarism.
Therefore, all of these reasons highlight the significance of referencing sources in academic and professional writing.