Westonci.ca is the premier destination for reliable answers to your questions, brought to you by a community of experts. Discover the answers you need from a community of experts ready to help you with their knowledge and experience in various fields. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

In computer science and user interface design, what principle guides the process of allowing users to modify data or commands provided to a system?
a) Input validation
b) User interface responsiveness
c) User input flexibility
d) Error handling efficiency