Copyright vs Facts, What You Can and Can't Redistribute

What's the foundational copyright principle most relevant to scraped data?

• AAll web content is copyrighted equally
• BCopyright protects original EXPRESSION, not FACTS, names, prices, numbers, locations are facts and generally not copyrightable; descriptions, reviews, photos, articles are expression and are
• CEffort always creates copyright
• DAnything on the internet is public domain