Answer:
The correct answer is B
Step-by-step explanation:
Agile release train (ART) is the one which is a self organizing, long lived team of Agile Teams, it is a virtual organization which executes, plans or commits together.
All the teams of the ART are hurdle or bound through a common vision, roadmap or a backlog. It comprise of 50 to 125 people.
So, the workshop which is conducted for problem solving, focuses on identifying the root or the real cause of the problems, this is the action what the ATR will take.