Megan Is Working Through an Extremely Difficult Calculus Problem

Multiple Choice

Megan is working through an extremely difficult calculus problem. If the overall electrical activity in her brain was being recorded at this time it would likely show brain waves

A) between 8 and 12 cycles per second.
B) between 4 and 7 cycles per second.
C) less than 4 cycles per second.
D) between 13 and 24 cycles per second.