Official Explanation

(A) No. We are not given any information as to how average snowfall might impact migratory bird flight patterns.

(B) No. We don’t know whether migratory birds are susceptible to the disease or if they might in fact be carriers of the disease. If they are carriers of the disease, then the fact that the disease has been diagnosed in Paluska would not necessarily affect the levels of migratory birds flying through either Hilden or Paluska.

(C) Yes. If Paluska is a town in Hilden County, then birds that fly through Paluska are also flying through Hilden County. So at least as many birds fly through Hilden as fly through Paluska. The following diagram might be helpful in conceptualizing this problem.

(D) No. Knowing that more natural predators have been reported in Hilden does not verify that there actually are more predators in Hilden. Furthermore, we don’t know the sizes of Hilden and Paluska. If Paluska is very small and Hilden is very large, the fact that more predators have been sighted in Hilden would not be significant to this passage.

(E) No. Again, while population density might impact migratory bird patterns, we don’t know how big Paluska and Hilden are. If Hilden’s area exceeds Paluska’s area significantly, the fact that Hilden has a bigger population might not affect the numbers of migratory birds that fly through each place.
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C.

If Paluska is subset of Hilden, then if Paluska has X birds migrating every fall, Hilden will have "atleast" X birds Migrating as well.

The answer is C.

Paluska is a city in country Hilden, so AT LEAST as many birds must be flying through Hilden

It is certain that at least as many migratory birds fly through Hilden every fall as fly through Paluska.

The conclusion above follows logically from which one of the following statements?


(A) Paluska’s average snowfall exceeds Hilden’s by eight inches. Incorrect

snowfall is irrelevant to argument

(B) Residents of Paluska have been warned not to use bird feeders this fall to avoid spreading a disease diagnosed in dead birds found at a few feeders in Paluska. Incorrect

it says about only last fall

(C) Hilden is the county in which Paluska is located. Correct

in this way birds must be fly through Hilden

(D) More natural predators have been reported in Hilden than in Paluska. Irrelevant

(E) Hilden’s population exceeds Paluska’s population by 25,000. Irrelevant

It is certain that at least as many migratory birds fly through Hilden every fall as fly through Paluska.

The conclusion above follows logically from which one of the following statements?

Condition: No. of migratory birds fly through Hilden > No. of migratory birds fly through Paluska

(A) Paluska’s average snowfall exceeds Hilden’s by eight inches.
Author has not mentioned any relation of snowfall and migratory birds Eliminate

(B) Residents of Paluska have been warned not to use bird feeders this fall to avoid spreading a disease diagnosed in dead birds found at a few feeders in Paluska.
Missing information of Hilden Eliminate

(C) Hilden is the county in which Paluska is located.
This has some logic. Above condition satisfies. KEEP

(D) More natural predators have been reported in Hilden than in Paluska.
Author has not mentioned any relation of predators with migration of birds Eliminate

(E) Hilden’s population exceeds Paluska’s population by 25,000.
Author has not mentioned any relation of population with migration of birds Eliminate
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has to be C because if hilden is not in paluska then there's a possibility that this may not happen

(C)

the other options are extreme IMO
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