The project sponsor wants to obtain quick feedback from end users for a product under...

Advise the stakeholders that they will need to wait until development is completed in order to get actual end-user feedback.

Hire additional resources to accelerate the schedule and deliver the product faster in order to get actual end-user feedback.

Advise the stakeholders to share images of the finished product in order to obtain valuable feedback from end users.

Work with the stakeholders to determine the minimum requirements needed to get valuable end-user feedback and revise the project schedule.