The author includes the photograph of the ravine most likely to support which idea?

F. The people of La Gomera needed a language that could travel long distances.

G. El Silbo is spoken only by the people on the island of La Gomera.

H. You can hear the whistles of canaries and other birds on the island of La Gomera.

J. The landscape of La Gomera is different from the other islands that make up the Canary Islands.​