I'm sorry, but it seems like there's some confusion in the question. You appear to be asking about the dynamics of singing in a sound file, but the provided information and the answer you referenced relate to a different type of problem involving money calculations. In the context of dynamical singing, "forte" indicates loud singing.
However, following the musical context and removing the programming and monetary calculations references, here is how you might analyze a sound file for dynamics:
1. Listen to each sound file given in the choices (a, b, c).
2. Pay attention to the volume of the singing in each file.
3. Identify which file features singing that is noticeably louder and stronger, which corresponds to the musical term "forte".
If you can provide the audio content or indicate the correct options related to the sound file, I will be able to help you more accurately.
For now, based on the expectation that you are assessing the dynamics of singing:
To determine which file features singing at a dynamic of forte:
- Play each sound file.
- Evaluate the volume and intensity of the singing in each one.
- The sound file with the loudest singing should be identified as featuring a dynamic of "forte".
As I do not have access to the sound files, this is the general approach to the task. If you provide more context or the actual sound files, I would be able to assist better.
