Which of the following plot developments relate to the theme of loyalty? select all that apply.

a. romeo sneaks back to verona to die next to juliet.
b. juliet kills herself next to romeo rather than live without him.
c. friar john is unable to deliver friar laurence’s letter to romeo.
d. lords capulet and montague plan to raise monuments to one another’s children.

I can't really decide between A and B. 
In option A, it could be loyalty because he came back to die with her instead of moving on to someone else,
and it could be option B, because Juliet committing suicide to die next to Romeo because she couldn't be with anyone else could also be considered loyalty.
I'm sorry I couldn't narrow it down more, but I hope this helps~!
~{Dunsforhands}