Humans' emotional tendencies are essentially unchanged from those of the earliest members of our species. Accordingly, although technology makes possible a wider range of individual and societal choices than in centuries past, humans are generally unable to choose more wisely. The argument depends on assuming which one of the following?
A: Regardless of the range of choices available to humans, they choose on the basis of their emotions alone.
B: Humans have undergone no significant changes since the origin of the species.
C: Humans would now be able to make wiser choices than in centuries past only if an essential change had taken place in humans' emotional dispositions.
D: Humans who make wise choices are generally in control of their emotions.
Choose A, B, C or D as your solution.
C