Respuesta :
The last sentence with the two commas would be the correct answer. “which is mostly made of pure copper” is describing the Statue and should be separated.
When I have difficultly deciding where a comma goes, I’ll say the sentence out loud and I’ll place the commas in places where I would naturally pause. :)
When I have difficultly deciding where a comma goes, I’ll say the sentence out loud and I’ll place the commas in places where I would naturally pause. :)
Answer: The third option.
Explanation: In this sentence, the relative clause "which is mostly made of pure copper" is non-defining or non-essential, i.e., it adds information about the subject that could be removed from the sentence and the sentence would still make sense. Non-defining relative clauses always go between commas, parentheses or dashes.