The following passage is about the whistled language of the Canary Islands.
For centuries, the inhabitants of La Gomera, a rugged volcanic island in the Canary Islands, have used a unique whistled language called Silbo Gomero to communicate across deep ravines and narrow valleys. [1] This whistled speech, which mimics the Spanish language's vowels and consonants with high- and low-pitched whistles, allows messages to travel up to five kilometers. In the late twentieth century, however, the rapid expansion of modern telecommunications and roads threatened to make the language obsolete.
The writer wants to add a sentence at Point [1] that highlights the physical demands and skill required to perform Silbo Gomero. Which choice best achieves this goal?
- Whistlers must use their fingers, hands, and cheeks to project these sounds, requiring precise breath control and muscle coordination.Answer
- BAlthough performing it requires intense physical effort and years of practice to master the necessary mouth shapes.
- CWhistlers use their hands to alter the sound's pitch, they must blow air with great force to project the whistles.
- DTo produce the loudest whistled sounds; a speaker had to place their fingers in their mouth in a precise shape.