Which should NOT take place at the daily Scrum?

During which activity is the sequence of numbers 0, 1, 2, 3, 5, 8, 13 often used?

An agile team has only one database administrator with the necessary knowledge of database-related tasks.
The project manager identifies the risk that if this person leaves, team velocity will significantly decrease.
What should the agile coach do?

Which of the following is NOT a prioritization technique?

Who is responsible for making sure that each user story is associated with at least one user role or persona?