Question: A strawberry farmer finds that, after a hard freeze, some of his strawberries are still alive. Which best explains why these strawberries were able to survive?

  Options: 
 A. They have larger leaves to protect the fruit than the other strawberries.
 B. They have different genetic variations that cause them to be more resistant to cold temperatures.
 C. They are able to reproduce more quickly than the other strawberries.
 D. The color of the strawberries is darker, and they maintain their temperature better than other strawberries.
Answer: B