When of the following options can be a handoff point between a Robot and a...

UiPath Action Center is a platform that enables human-robot collaboration for unattended automation. It allows users to provide inputs to robots, handle business process exceptions, and initiate unattended processes through form-based input and file upload. Action Center also offers a central portal where users can track and monitor complex workflows across business units, tasks, people, and robots.

References:

Action Center - Introduction

Human Robot Collaboration - Unattended Automation

Action Center - UiPath