B
Below is a question with multiple-choice answers. Choose the correct option based on your reasoning.

### Question:
What best explains why some cooking pans have rubber handles?

### Choices:
A. The rubber in the handles is easy to hold.
B. The rubber in the handles is a good insulator.
C. The rubber in the handles keeps the food in the pan hot.
D. The rubber in the handles keeps the metal in the pan cool.

### Answer:
