A dog hears higher pitches than a human hears; a cat has a

A dog hears higher pitches than a human hears; a cat has a greater capacity to see in dim light than a human normally has; a platypus picks up weak electric signals to which a human is normally insensitive.

Which of the following conclusions can be properly drawn from the statements above?

a. Most animals have sensory capacities superior to those demonstrtated by humans.
b. Some animals have sensory capacities that are different from those of humans.
c. During evolution the eyes and ears of human beings were modified to make human sense perception less acute.
d. Reaseachers should not be surprised to find that all the sensory capacities of platypuses are greater than any of those demonstrated by humans.
e. Any human who can see in dim light does so less well than any cat.