Option 3: (B), (D), (A), (C) -> This creates a logical flow: starting with the subject "Pinterest is a multifaceted visual discovery and curation platform that empowers users" (B), followed by what users can do "to explore a diverse spectrum of ideas across versatile domains" (D), then explaining the method "organizing content into thematic boards for creativity and community-driven" (A), and concluding with the outcome "sharing, transforming passive browsing into an interactive experience" (C). The sentence flows naturally from introduction → purpose → method → outcome. -> correct