Premise:
Brains do not need to process all sensory input. Instead, they selectively analyze relevant information and build a generalized image to function well.
Conclusion we must support:
What follows from the idea that selective processing + generalized image helps functioning?
Prethinking:
If the brain ignores irrelevant data and builds a simplified model, that mechanism should improve performance in navigating reality compared to processing everything.
Option analysis:
A. Claims some brains process all information
Not supported; no evidence given → eliminate
B. Says processing all information could help navigation
Contradicts idea that selective processing is sufficient and beneficial → eliminate
C. Says building a generalized image from relevant info helps people navigate reality better
Directly matches the idea that selective processing improves functioning → keep
D. Says full processing is incompatible with generalized image
Too strong; passage does not say they cannot coexist → eliminate
E. Says generalized image requires most details of reality
Contradicts selective processing idea → eliminate
Final Answer: C