Topic: Word Meaning, Subject: English Grammar (ইংরেজি গ্রামার)

Best Answer Explained in Below-:

The term "archipelago" specifically refers to a chain or cluster of islands. This word is derived from the Italian "arcipelago," which historically referred to the Aegean Sea, known for its many islands. Therefore, when considering the options provided, the choice "C) A group of islands" directly aligns with this definition.

In contrast, the other options refer to entirely different concepts. Option A, "A group of archives," suggests a collection of documents or records, which bears no relation to geographical formations. Option B, "Archeological sites," pertains to locations of historical significance often linked to ancient civilizations, rather than physical landforms like islands. Finally, Option D, "Arch of a building," refers to a structural element in architecture, which again has no connection to the concept of islands.

Thus, "C) A group of islands" is the only option that accurately captures the essence of "archipelago," making it the correct answer. Understanding this relationship underscores the importance of contextual vocabulary in defining geographical terms accurately.