Answer:
A signal phrase is one method to introduce paraphrases, summaries, and direct quotations.
Explanation:
An MLA signal phrase is one that shows the reader of a text that a direct quote, summary, or paraphrase is about to happen. For this, the MLA signal phrase presents clear signs such as presenting words such as "according to" and "indicates," so that the reader has no doubt that the text will suffer an external consequence of a text by another author.