engineering tools and infrastructure incompletely

Hi,

could you please help me with the following question?

Which two things does a Scrum Master do if the Development Team doesn’t have the engineering tools and infrastructure to completely finish any Product Backlog Items? (choose 2)

1. Declares the Development Team not ready for Scrum.
2. Ask the development Team to spend as many Sprints as necessary to prepare the engineering tools and infrastructure so any Product Backlog item it selects is potentially shippable at Sprint end.
3. Asks the Development Team to do the best it can on each Product Backlog item it selects.
4. Has the Development Team Define “Done” and do the same work for all Product Backlog items it selects.
5. Has the Development Team improves its skills, tools and infrastructure over time and adjust the definition of “Done” accordingly.


Thanks in advance :-)