Which of the following is an expected benefit of prototyping?

Prototyping is a crucial practice in software development and requirements engineering because it facilitates early user involvement in the design process. When users are given the opportunity to interact with an early version of the product, they can provide invaluable feedback that informs further development. This early interaction helps identify potential issues, usability problems, and feature requests that might not have been apparent from the requirements alone.

By seeing and experiencing a prototype, users can articulate their needs and expectations more effectively, which leads to enhancements in the project's alignment with user wants and needs. This feedback loop is fundamental to creating a product that is user-friendly and meets the target audience's requirements, ultimately increasing user satisfaction and acceptance upon full release.

The other options touch on different aspects of prototyping but do not directly underscore this primary benefit of user interaction and feedback. Thus, option B encapsulates the essence of why prototyping is beneficial in the development process.