Q. There are 9 teams working on a large international project. All of them are composed of highly experienced developers that have been working in Scrum environments for a long time. How many Scrum Master roles are needed for this project? A. 0, because the teams are experienced enough B. 1 Scrum Master role is enough for the entire project C. 9, because each team needs a Scrum Master role D. 3 Scrum Masters, with one for three teams Correct Option: D EXPLANATION It does not matter how experienced the developers are, they still need Scrum Master, at least for removing impediments and protecting the team from distractions. In scaled Scrum, each team needs a Scrum Master role. One person can be the Scrum Master for more than one team. My doubt is, why correct is not C?