The sitewide metadata in Career Site Builder (CSB) is crucial for enhancing the visibility and accessibility of the site on search engines and for users. If "Jobs at Best Run" is set as the Page Title, it will display on the browser tab when a user opens the home page for the site (Option A). Additionally, when "Jobs at Best Run" appears in search engine results, it will serve as a clickable link directing users to the CSB site (Option B). Option C is incorrect because using keywords in page content is equally important as populating the Meta Keywords field for SEO. Option D is incorrect because metadata leading practices involve specific titles for different pages to enhance SEO. Reference: [SAP SuccessFactors Recruiting: Candidate Experience Administration], Unit 6: Site Setup, Lesson: Site Metadata, Slide 4-5.