Many ancient philosophers believed that human beings were fundamentally rational creatures, capable of discerning truth through logic alone. Modern cognitive science, however, reveals the pervasive influence of cognitive biases and emotional reasoning on even our most considered judgments. The author's primary purpose in the passage is to:
✓ Correct Answer: Option C
The passage presents a "traditional view" (ancient philosophers) and then introduces "modern cognitive science" to reveal conflicting findings, thereby challenging the earlier belief.