Please, would someone clarify this question:
Recently in City X, developers have stopped buying land, contractors have found themselves going without work for longer periods, and banks have issued fewer mortgages. There must be fewer new residents moving to City X than there were previously.
Which of the following indicates a flaw in the reasoning above?
A This year several housing blocks have gone on the market after being held up for months by legal red tape. (Answer)
(A) CORRECT. This suggests that there might be another reason for the decline in home construction: the supply of available housing has been increased through the release of many previously built homes. Therefore, the reasoning in the argument is flawed.
B The average size of a new home has increased significantly over the past several years.
C Re-sales of condominiums have increased over the past six months.
D The cost of materials such as lumber and cement has decreased over the past year.
E Sales of other big-ticket items, such as automobiles and boats, has remained steady over the past year.
The answer doesn't make sense to me. While it might explain why developers have stopped buying land, and contractors have less work, it does nothing to explain why there are less mortgages. If people simply started buying up these newly accessible homes, why haven't they purchased mortgages to do so?
The solution further states that choice C is wrong, because the question focuses on "new homes." But, nowhere in the question does it state that new homes are the sole focus. Personally, I thought the focus was on the new residents moving in, and I think that the implicit idea there is that the new residents are not all moving into newly constructed homes. Following that reasoning since condominiums are replacing sales of newly constructed homes, and condominiums are probably cheaper than from the ground-up built homes, it would explain away the mortgages.