Urban Planner: The installation of green roofs in urban areas can reduce the overall city temperature during summer months, thereby reducing the need for air conditioning and energy consumption. However, despite their benefits, the widespread adoption of green roofs has been slow. This is because the initial cost of installing green roofs is considerably high, and because __________.
Which of the following, if true, most logically completes the urban planner’s argument?
(A) there are sufficient numbers of skilled laborers available to install green roofs
(B) green roof materials are often sourced from suppliers who are located far from urban centers(C) tax incentives for green construction projects are commonly available in urban areas
(D) traditional roofing solutions are generally less expensive and quicker to install than green roofs
(E) green roofs typically last longer than traditional roofing materials, thus potentially saving money over time
Here, we need to complete the argument. Let's find out the conclusion first.
Conclusion - However, despite their benefits, the widespread adoption of green roofs has been slow.
We need to provide a sentence which logically completes the urban planner's argument. For that we need to provide a premise which might strengthen the conclusion that although the green roofs are beneficial their adoption has been slow because _____
Prethinking - The answer could be related to things like: excessive government control/resource crunch/it requiring specialised labour which is not available etc
(A) there are sufficient numbers of skilled laborers available to install green roofs
in that case green roofs should have been more widely adopted. Reject.
(B) green roof materials are often sourced from suppliers who are located far from urban centersThis is in line with the prethinking. It explains that if the materials are coming from far off the adoption has been
slow.
(C) tax incentives for green construction projects are commonly available in urban areas
In that case, more wide adoption should be seen.
(D) traditional roofing solutions are generally less expensive and quicker to install than green roofs
Tricky. This fact is good to know but it does not explain why the adoption for green roofs has been
slow(E) green roofs typically last longer than traditional roofing materials, thus potentially saving money over time
in that case, it should have been more widely adopted.