Answer the following question given this paragraph: 

An underwater earthquake creates a tsunami this way: The movement of the crust displaces water. The displacement forms a set of waves. The waves travel at jet speed through the ocean. Since the waves have low amplitudes and long wavelengths, they are unnoticed in deep water. As the waves reach shore they compress. They are also pushed upward by the shore. For these reasons, tsunami can grow to enormous wave heights. Tsunami waves can cause tremendous destruction and loss of life. Fortunately, few undersea earthquakes generate tsunami.


Q: What type of amplitudes and wavelengths avoid detection in deep water?

 Choices:

- high and long

- high and wide

- low and wide

- low and long

A:
low and long
