Critical Reasoning

. In the United States, vacationers account for more
than half of all visitors to what are technically called
“pure aquariums” but for fewer than one quarter of
all visitors to zoos, which usually include a “zoo
aquarium” of relatively modest scope.

Which of the following, if true, most helps to account
for the difference described above between visitors to
zoos and visitors to pure aquariums?
(A) In cities that have both a zoo and a pure
aquarium, local residents are twice as likely to
visit the aquarium as they are to visit the zoo.
(B) Virtually all large metropolitan areas have zoos,
whereas only a few large metropolitan areas
have pure aquariums.
(C) Over the last ten years, newly constructed pure
aquariums have outnumbered newly established
zoos by a factor of two to one.
(D) People who visit a zoo in a given year are two
times more likely to visit a pure aquarium that
year than are people who do not visit a zoo.
(E) The zoo aquariums of zoos that are in the same
city as a pure aquarium tend to be smaller than
the aquariums of zoos that have no pure
aquarium nearby.


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