What can be deduced from this?

A Developer notifies the Scrum Master that they will need an external specialist to help full-time with some topics for at least four Sprints.

What can be deduced from this?
A . The Team is not cross-functional.
B. The Team is cross-functional.
C. The Team velocity will increase as the specialist will help to get more work done.
D. The Team velocity will not change. External resources cannot be counted for the velocity.

Answer: A

Explanation:

Scrum Teams are cross-functional, meaning the members have all the skills necessary to create value for each Sprint without depending on others outside the team. Changes in membership within a Scrum Team will reduce productivity and velocity in the short term.