What are two ways that architecture and infrastructure are handled in Scrum? (choose the best two answers)

What are two ways that architecture and infrastructure are handled in Scrum? (choose the best two answers)
A . They are implemented along with functional development of the Product.
B. They are added to the Product Backlog and addressed in early Sprints while always requiring at least some business functionality no matter how small.
C. They are built by a separate team through the creation of an architectural runway.
D. They are discussed determined and documented before the actual feature development Sprints.

Answer: A,B