An agile practitioner becomes a Scrum Master on an established Scrum team. After introductions, what should the agile practitioner do?

During a backlog refinement meeting, a senior team member raises a concern about an epic sizing that requires the use of a new interface for a vendor product. The product owner acknowledges this as a risk.
What should the product owner do now?

Team A is producing 61 points per iteration and Team B is producing 20 points per iteration. Team A has more senior engineers. A manager demands that Team B match Team A's points in the next iteration. Based on this information, it is reasonable to tell the manager that:

Which of the following is NOT considered an enterprise Agile method?

In Agile development, what is the term for the internal things that you choose not to do now, knowing they will impede future development if left undone?