Identify the choice that contains a sentence fragment. A. Symbolized the Cold War.
B. The west side of the concrete barrier was covered in graffiti.
C. It was erected in 1961.
D. the Berlin Wall separated West and East Berlin.​

A. Symbolized the Cold War.

Explanation:

Considering the available options, the choice that contains a sentence fragment is "Symbolized the Cold War."

This is because "Symbolized the Cold War, " does not form a complete sentence, but rather just a part of it. The phrase makes the reader wonder what "symbolized the cold war." Hence to have a complete sentence there is a need to be an independent clause attached to it or the necessary components.

i think the answer is c