Tatiana went outside at 8:00 pm to feed her dog Rufus. She decided to sit outside with Rufus as he ate so she turned on the porch light to illuminate the area around them. Once she turned the porch light on she noticed insects flying toward the light.
The insects flying toward the light after it was turned on is an example of
A. reproduction.
B. a response to a stimulus.
C. natural selection.
D. artificial selection.