- Fri Mar 31, 2023 3:57 pm
But that's exactly the point - as you say, "Maybe when there wasn't a demand for air-conditioning something else caused the demand for houses with thin walls?" So...since something else can cause a demand for these types of houses besides air conditioning, what need is there whatsoever to invoke air conditioning as a cause of demand for them? Something else has factually already caused the demand, answer choice (C) implies, so no other cause is needed. The author's preferred cause, AC, is another cause, and therefore is weakened by the already-adequate cause mentioned by answer choice (C). Whatever factor was causing the demand earlier may still be present. It is possible that AC is also here as the cause of demand, but it's less likely than before answer choice (C). That weakens the argument, so that's correct.