The parenthetical citation errors, according to the MLA Format, in the sentences are corrected as follows:
1. <u>(Kerr, "Symbols of Sutpen's Megalomania" 48).</u> The title is included in the parenthesis.
2. <u>(MacGregor 50).</u> The full-stop comes after the parenthetical citation and not before.
3. <u>(National Research council 21).</u> There is no full-stop before the parenthetical citation.
4. <u>(Janis et al. 611).</u> Put a full-stop after the parenthetical citation.
5. <u>(Shaw 96).</u> The full-stop comes after the parenthetical citation.
<h3>What is a parenthetical citation?</h3>
A parenthetical citation is an in-text citation used to summarize, paraphrase, or quote from another source.
The MLA parenthetical in-text citation style uses the author's last name and a page number; for example: (MacGregor 122) <u>without any comma separating the last name and the page number</u>.
The purpose of the MLA parenthetical in-text citation is to direct readers to the entry in the works-cited list, which must be included at the end of the report. See attached image for further understanding.
Learn more about MLA parenthetical in-text citations at brainly.com/question/8130130