Final answer:
The correct sentence using MLA in-text citation with an attributive phrase is (b), where the citation follows the quoted or paraphrased material as '(Rudner, 11)'.
Step-by-step explanation:
The sentence that uses the proper MLA style for an in-text citation with an attributive phrase is option (b): 'In a recent study, titled Home Schooling Works, Dr. Lawrence Rundner found that homeschoolers scored higher on standardized tests (Rudner, 11).' This sentence correctly places the author's last name and the page number in parentheses after the quoted or paraphrased material, as required by MLA style guidelines. An attributive phrase introduces the source and is followed by the in-text citation that includes relevant page numbers or paragraph numbers where the information can be found. The MLA format emphasizes brief and unobtrusive in-text citations, directing readers to the more detailed Works Cited page.