What is a necessary step to implement a custom error handler in the CAP SDK for Node.js?

What is a necessary step to implement a custom error handler in the CAP SDK for Node.js?
A . Register the error handler function for the before phase of the error.
B . Catch exceptions during a CRUD operation.
C . Register the error handler function for the on phase of the error.
D . Write a custom Node.js package.

View Answer

Answer: C