From Outreach Crayon's discussion on Google's Core Updates in 2023, what strategic changes should content creators implement in response to the E-A-T (Expertise, Authoritativeness, Trustworthiness) guidelines to safeguard their website's ranking? A. Prioritising content from verified experts or authoritative sources to provide trustworthy information that complies with E-A-T principles. B. Solely increasing the frequency of content updates with no regard for the content's quality or source credibility. C. Ignoring E-A-T guidelines as they do not significantly influence search rankings. D. Focusing on technical SEO factors only, while disregarding content quality and source credibility