How do you hide a response to a question?

I have a form created for referee evaluation.  There is a section for the referee coaches to complete within the form that I do not want the referees to see when the form is submitted to the referees.  I want the section to only be visible to the referee coaches submitted form and the copy that is sent to myself as the referee manager.  What condition should I use to make that happen?

It looks like that form is an approval process workflow, so to find out more about it, please follow the guide below.

Guide: A-General-Approach-on-Building-an-Approval-Process-Workflow

Let us know if you need further assistance regarding this.