This is because it would give them a sense of hope.
An argument does not have to controversial: it just refers to someone taking a stand, arguing for or against something. It does not have to be in opposition to other people's ideas either.
So now we have two options left:
writing that takes a specific perspective
and
<span>writing to explain a writers ideas on a topic
I find both of them not perfect: I would rather say that an argument is a claim, or a statement, that needs to be supported. But from the two I think the better one is </span><span>writing to explain a writers ideas on a topic (this is the best answer I think) since a perspective can mean a "point of view" and this not what an argument is.</span>
By mourning, Queen Margaret elicits sympathy from the audience since her laments are proved to be extremely moving. So, the women’s words touch the audience members and they act like feeling pity for her. She developed this throughout the play, and expounds all the violence and tragedy in her entire life.