<u>Answer:</u>
<em>When system feasibility is being determined </em>
<u>Explanation:</u>
<em>Prototyping is the part of Requirement and Analysis phase. </em>It is the phase where the client and the development team sits and discuss about what the requirement is and show <em>a model of what are all the things which they could bring up the requirement as a software. </em>
So here, the prototyping is really essential to visually understand how the team has interpreted the requirement and how far it matches with the client. <em>All the other options stands invalid in the given context.</em>
Answer:
Exaggerated used of the technique can produce a comical effect, while more realistic animation must time the actions exactly to produce a convincing result. Slow in and slow out. Adds more frames near the beginning and near the end of a movement, and fewer in the middle, to make the animation appear more realistic.
If you play the Wii, they have the controller and then they have a nunchuck that connects to the other controller, and you use that with your other hand. Hope that helps :)
Well there are a few like
Microsoft Windows
Apple iOS
Apple macOS
Linux Operating System