Answer the following question given this paragraph: 

Volcanoes rise where magma forms underground. Volcanoes are found at convergent plate boundaries and at hotspots. Volcanic activity is found at divergent plate boundaries. The map in Figure below shows where volcanoes are located.


Q: When this forms underground, volcanoes rise?

 Choices:

- pumice

- soil

- CO2

- magma

A:
magma
