What is the User-defined step in a single step route map used for?

What is the User-defined step in a single step route map used for?
A . To ensure all performance forms are routed to the same user in that step
B . To assign the form to a group of people
C . To make sure the form comes back to the inbox of the user at the end of the workflow
D . To split the sections of the form and send each of them to different users for validation

Answer: C