Bunuel
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
Conclusion: Despite benefits of green roofs reducing overall city temperature during summer months, thereby reducing need for AC and energy consumption, widespread adoption of green roofs has been slow
reason: initial cost of installing green roof is high
and
(A) there are sufficient numbers of skilled laborers available to install green roofs
-- how come sufficient number and skilled labor are the reasons adoption is slow. Ruled out
(B) green roof materials are often sourced from suppliers who are located far from urban centers
-- this talks about supply side how it is sourced but does not explain why adoption is slow.
(C) tax incentives for green construction projects are commonly available in urban areas
-- if tax incentives are there, why adoption is low
(D) traditional roofing solutions are generally less expensive and quicker to install than green roofs
-- talks about traditional roofing is less expensive, and quick to install. People do not have to wait plus less expensive. A good reason why adoption is low.
(E) green roofs typically last longer than traditional roofing materials, thus potentially saving money over time
-- this is another good reason why adoption should be more but does not explain why it is low.
D is the answer