Matilda is delivering a presentation to a large group of people at a climate summit. Her presentation is on the effects of using non-renewable energy. She is using a microphone, so that her voice can reach the ends of the large conference hall. Matilda focuses on giving voice to all the sounds of each word she speaks so that the members of the audience at the end of the hall can hear her speech clearly. In this instance, Matilda is focusing on _____.
