Based on the observations natalie curtis made about the navajo people and their songs, which of the following best describes why the songs were performed?

The songs were performed with the singers' eyes closed so they could focus on the words and preserve every detail.

•as parts of ceremonies and often to ask for peace and blessings from evil. • late at night to entertain themselves or foreign visitors at the camp. • on long journeys through the arizona desert, to keep their energy and minds boosted. • during the long winter nights, when they were cold and the land was not suitable for farming.

Select the word from the list that best fits the definitionstates the the universe is expanding