Define the roles in Scrum?
Product Owner: The product owner is an individual who is responsible for increasing the ROI by determining product features, prioritizing these features into a list, what needs to be focused on the upcoming sprint, and much more. These are constantly re-prioritized and refined.
Scrum Master: This individual helps the team in learning to apply Scrum to ensure optimum business value. The scrum master removes impediments, shields the team from distractions, and enables them to adopt agile practices.
Scrum Team: They are a collection of individuals who work together to ensure that the requirements of the stakeholders are delivered.