Which of the following is an English noun that comes unchanged from Latin?

The noun "data" in English originates from Latin, where it is the plural form of "datum," meaning "something given." In contemporary English usage, "data" is often treated as a mass noun (similar to "information") and is frequently used in both singular and plural contexts. However, the term has retained its original form from Latin without any alteration in spelling or structure when it transitioned into English.

While "arena," "area," and "circle" are also derived from Latin, they have undergone changes in spelling or meaning. For instance, "arena" comes from the Latin word that originally refers to the sand covering the fighting area in a Roman amphitheater, and "area" also has evolved from its Latin roots but maintains similarities in form and meaning. However, "data" stands out as the one with the least modification, maintaining its Latin plural form in English, which is why it is identified as the correct answer in this context.