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

### Question:
There is a river at the base of Mount Tom. In the spring the water level is usually very high. In the summer it is lower. The higher level of water during the spring comes from

### Choices:
A. hurricanes.
B. melting snow.
C. tornadoes.
D. evaporating water.

### Answer:
