A Product Owner wants advice from the Scrum Master about estimating work in Scrum. Which of these is the guideline that a Scrum Master should give? (Choose the best answer.)

A Scrum Master is keeping a list of open impediments, but it is growing and they have been able to resolve only a small portion of the impediments. Which two techniques would be most helpful in this situation?
(Choose two.)

Who is responsible for clearly expressing Product Backlog items?

Who is responsible for managing the progress of work during a Sprint?

Select two ways in which technical debt impacts transparency. (Choose two.)