A Scrum Master is keeping a list of open impediments, but it is growing and he/she has been able to resolve only a small portion of the impediments. Which three techniques would be most helpful in this situation?
1) Prioritizing the impediments based on their impact
2) Collaborating with the development team to find solutions
3) Escalating the impediments to higher management
4) Ignoring the impediments and focusing on other tasks
5) Performing root cause analysis to identify the underlying issues
