Respuesta :
Answer:
C) Long ago, builders erected the (Great Wall of China) to keep out invader.
Explanation:
A direct object is a noun or a pronoun that receives the action of a verb in a sentence. If you're having trouble trying to identify one, you can answer the questions “what?” or “who?” and their answers will give you the direct object.
In sentence C, the noun "Great Wall of China" function as a direct object because it is the recipient of the verb "erected" and it also answers the question "What did the builders erect?" Answer: "the Great Wall of China."