Answer:
They are all noble gasses. They are also all in the same column and group.
I hope this helps!
Say something about how irony is used in the story. When Romeo thinks Juliet is dead he drinks the poison to kill himself. She was just pretending to be dead though. And then she wakes up and sees him dead and then kills herself. So they all wanted a happy ending but couldn't have it. It's ironic because they went to all the trouble to be together when they just die anyways.
Most English noun plurals end in -s.
A. Abab
Deck rhymes with wreck and fled rhymes with dead. So I would say A