extensive housing construction is underway in Pataska Forest the habitant of a large population of deer.Because deer
feed at the edges of forests,there deer will be attracted to the spaces alongside the new roads being cut through the Patska forest to serve the new residential areas.Consequently,once the housing is occupied,the annual number of the forest's deer hit by cars will be much higher than before construction started.
which of the following is an assumption on which the argument depends?
a)the number of deer hit by comercial vehicles will not increase significantly when the housing is occupied.
b)Deer will be as attracted to the forest edge around new houses as to the forest edge alongside roads.
c)In years past,the annual number of deer that have been hit by cars on existing roads through Pataska Forest has been very low.
d)the development will leave sufficient forest to sustain a significant population of deer
e)no deer hunting will be allowed in Pataska forest when the housing is occupied
The best way to find underlying assumptions is to negate the answer choices to see which one threatens the conclusion the most.
A) If the number of commercial vehicles plying through the new roads increased, then more deers would be hit even irrespective of the fact that the housing would be occupied or not. Moreover, the conclusion leaves a huge void with the phrase."once the housing is occupied". This leads us to question: "what if the houses were not occupied?". That would lead us to answer A. Hence this seems to be correct. But let us go through the other statements before marking A.
B) If the deers were not as attracted to the forest edges near the houses as to the edges near the streets, it is not affecting the conclusion that strongly. It doesn't matter where the deers are getting hit, so long they are hit by cars going to the houses.
C) This choice is 'out of context'.
D) What if this were not true? There would not be sufficient forest left for the deers. Hence, negating this choice is, actually, strengthening the conclusion. This is an 'opposite answer choice'.
E) This choice is 'out of context'.
Hence, the answer is A.