You Have Captured a Number of Rats from a Wild

Multiple Choice

You have captured a number of rats from a wild population and quickly surmise with tests that they are very good at avoiding food with poisons. What would best explain this observation?

A) Rats are probably just intelligent enough to avoid poison.
B) Rats may experience a large variety of toxins in their environment and learn to avoid them.
C) Rats are taught by their parents to test small bits of food first and then return later if the food seems safe.
D) Rats may be able to tolerate large amounts of poison.