Answer the following question given this paragraph: 

The alkaline earth metals include beryllium, magnesium, calcium, strontium, and barium. Strontium and barium react with air and must be stored in oil.


Q: Beryllium, magnesium, calcium, strontium, and barium are classified as what type of metals?

 Choices:

- alkaline aligned metals

- acid earth metals

- alkaline support metals

- alkaline earth metals

A:
alkaline earth metals
