PET scans of people taken while they are solving problems have revealed that the brains of highly intelligent people consumed __________ glucose, suggesting that their brains were working ______ than the brains of people with average intelligence.
A)more; more efficiently
B)more; faster
C)less; more efficiently
D)less; faster

Question

Quizplus · Accepted Answer

PET scans have shown that the brains of highly intelligent people consume less glucose while solving problems, indicating that their brains are working more efficiently compared to those of people with average intelligence.

PET Scans of People Taken While They Are Solving Problems