which sentence is punctuated correctly? the house which has been vacant—is finally for sale. the statue…

which sentence is punctuated correctly? the house which has been vacant—is finally for sale. the statue, which is made of copper is well crafted. one country—that i would like to visit—is australia. one play that i would like to read is julius caesar.
Answer
Brief Explanations:
- In the first option, the dash placement is incorrect as the clause "which has been vacant" is a non - essential relative clause and doesn't need that dash placement.
- In the second option, a comma should follow "copper" to set off the non - essential relative clause "which is made of copper".
- In the third option, "that" is a restrictive relative pronoun and dashes are not appropriate for restrictive clauses.
- The fourth option "One play that I would like to read is Julius Caesar." has correct punctuation as "that" introduces a restrictive relative clause and no additional punctuation is needed.
Answer:
One play that I would like to read is Julius Caesar.