Invalid Answer - Where is this Feedback Master?
I am developing a Drag and Drop Exercise. When I submit an interaction without choosing any answer choice I receive a feedback box labelled "Invalid Answer - You must complete the question before submitting." I want to customize the look of the message and change the text, however, when I look under the "Slide Master" options I do not see this slide. Where can I locate and change this feature?
Any help would be appreciated.