human
Question: A student is writing a report on volcanoes. What should the student include to best help explain how a volcano works?

Choices:
A) a photograph of an active volcano
B) a map showing the location of a volcano
C) a table of famous volcanoes and last known eruptions
D) a diagram showing the structure of a volcano
gpt
The correct answer is 3: a diagram showing the structure of a volcano.