Use the passage to answer the question.
Which sentence from the passage best reveals the writer's assumptions?
A. That brain may be no larger than a single poppy seed, but the fly is a far more sophisticated creature than you might have thought.
B. To understand how a fly thinks, scientists used super-slow-motion video cameras to watch a fly react when attacked.
C. The fly sneaks out from under the swatter and gets away. Once in the air, the fly changes its flying style and speed to continue to evade a threat.
D. Patience is important: would-be swatters should not aim for a fly’s present location.***