Which sentence demonstrates correct capitalization of multiple proper nouns in a list?

• A. I visited paris, france, and italy last summer.
• B. I visited Paris, France, and Italy last summer.
• C. I visited Paris, france, and Italy last summer.
• D. I visited Paris, France and Italy last summer.

Answer: (B)

Capitalizing proper nouns in a list means every named place should start with a capital letter, and the items should be clearly separated. In this sentence, Paris, France, and Italy are all specific place names, so each is capitalized. The sentence also uses a comma before the conjunction that joins the final item, which is the standard way to list three items in American usage and prevents confusion. That combination—capitalizing each place name and including the comma before and—makes this the correct form. The other options miss capitalization on one or more names, or omit the necessary comma before the final item, which muddles the list.