Q: What is the best-known geyser in the world that also faithfully erupts every 90 minutes?


Read this paragraph and choose the correct option from the provided answers:

Old Faithful is the best-known geyser in the world. You can see a picture of it in Figure below . The geyser erupts faithfully every 90 minutes, day after day. During each eruption, it may release as much as 30,000 liters of water!.

 Choices:

- devil's tongue

- angel falls

- old guy

- old faithful


A:
old faithful