Which of the following statements about non-core Scrum roles is correct?

A company that builds propellers for ships has incurred heavy losses while implementing the product at the end of the project. This is because a large number of customer requirements which changed during the project were not incorporated into the deliverables. The company could have avoided this situation if it had applied the Scrum Methodology, as it would have ensured that any change requested by the customer was included as part of the project, and that the team produced deliverables that were better suited to the final business environment. Which Scrum aspect is being emphasized here?

You are the Scrum Master of a project to construct an IT Tech Park. This project requires adhering to stringent quality standards at every stage of development. A Scrum Core Team is formed for this project in which the Scrum Master is supposed to facilitate a "team first" mentality when it comes to quality. You must ensure all of the following to maintain quality in Scrum, EXCEPT:

Which of the following are important selection criteria while choosing a Scrum Master?

Scrum Masters have to solve both internal and external impediments for the Scrum team during the Create Deliverables process. To do so, they record the impediments in the Impediment Log during
_________________________.
A) Daily Standup Meetings.
B) Sprint Review Meetings.
C) Release Planning Meetings.
D) Sprint Planning Meetings.