Answer the following question given this paragraph: 

As the tectonic plates move above a hot spot, they form a chain of volcanoes. The islands of Hawaii formed over a hot spot in the middle of the Pacific plate. The Hawaii hot spot has been active for tens of millions of years. The volcanoes of the Hawaiian Islands formed at this hot spot. Older volcanoes that formed at the hot spot have eroded below sea level. These are called the Emperor Seamounts.


Q: What forms when tectonic plates move above a hot spot?

 Choices:

- earthquake chain

- volcanic system

- volcanic setting

- volcanic chain

A:
volcanic chain
