Context: My stepmother was limping for the rest of the day , unfortunately , and she avoided walking more than necessary . The Stonehenge replica was so - so ; it was made of concrete , so it looked a bit silly . Still , it was mildly amusing to see .
Question: why was the Stonehence monument made of concrete ?
Option 0: They could not have the real thing
Option 1: Polystyrene is not very durable
Option 2: Stonhence was not made of wood
Option 3: None of the above choices .
Answer: 0