Need Guidance and Clarification - PSM 1 preparation

Dear All,

I am preparing rigorously for the 2nd time as first time i failed with 81 % (though i prepared well).

Now i have completely gone through numerous times :

Scrum Guide (more than 3-4 times) +
Open Assessment of PO / SCRUM / Developer on scrum.org (getting 100 )+
Practise exams from mplaza and mplashin
Some more pocket guides and videos from youtube.

Any other suggestions/inputs ?

Also Can someone help in clarfying the below questions:

1.) The Product Owner and Scrum Master should not be part of the Development Team.

True or False ? I feel its true but always confused how this question relates.

2.)What does it mean to say a Product Backlog item is Done? Choose all that apply

A-The item can be a part of a potentially releasable piece of software
B-The item creates a software that is usable by the end user
c-The item is ready for user acceptance testing
D-The item has all the quality requirements defined by the Product Owner
E-No work left based on the Definition of Done
F-The item is ready for functional testing by the Product Owner
G-All tasks identified for the item are done

3.)Which of the following is the most important concern in scaled Scrum?

a.Assigning items to teams
b.Coordinating the activities of teams
c.Having a clear Definition of Done that works for all teams
d.Minimizing dependencies between teams
e.Making sure there’s enough work for all teams

Regards,
Sadha