How many Global Exception Handlers can be established per automation project, according to best practices?

According to best practices in UiPath, there should be a single Global Exception Handler for the entire project, making option A correct. The Global Exception Handler is designed to manage unhandled exceptions in a centralized manner, allowing for a consistent approach to error handling across the entire project. Options B, C, and D suggest multiple handlers, which contradicts the principle of centralized exception management.