A Scrum Team has been working together very effectively for months and they are no longer holding a Sprint Retrospective. Which important feature of Scrum is being lost as a consequence?

The opportunity to tackle some technical debt between sprints

An inspoection of how the last spring went with regards to people, processes, relationships, and tools

The chance to be coached in scrum by the product owner.

A discussion around what to do in the next sprint, and how to do the work.