Which process generates inputs from scratch?

The correct choice is Generation-Based because this process involves creating inputs or test cases from scratch, often used in testing and security assessments. Generation-Based techniques are specifically designed to produce new and unique data inputs, which helps in uncovering potential vulnerabilities that may not be detected by using pre-existing or static input data. By generating inputs completely anew, this method can more thoroughly explore the application or system being tested, making it an essential tool in identifying security weaknesses and ensuring robust security practices.

The other processes listed, while important in their own contexts, do not primarily focus on creating inputs from scratch. Mutation, for instance, involves altering existing inputs to test a system's vulnerability, rather than generating new ones. Code Review concerns the examination of source code for flaws without generating new inputs. Dynamic Analysis is focused on analyzing the system while it is running, relying on existing inputs rather than creating new ones. Thus, Generation-Based stands out specifically in its unique approach to generating entirely new input data.