Which aspect of analysis would be most appropriate for this excerpt from act i scene i, of shakespeare's richard iii?

richard iii (duke of gloucester): what news abroad?

lord hastings: no news so bad abroad as this at home;
the king is sickly, weak and melancholy,
and his physicians fear him mightily.

richard iii (duke of gloucester): now, by saint paul, this news is bad indeed.
o, he hath kept an evil diet long,
and overmuch consumed his royal person:
'tis very grievous to be thought upon.
what, is he in his bed?

lord hastings: he is.

richard iii (duke of gloucester): go you before, and i will follow you.
[exit hastings]
he cannot live, i hope; and must not die
till george be pack'd with post-horse up to heaven.
i'll in, to urge his hatred more to clarence,
with lies well steel'd with weighty arguments;
and, if i fall not in my deep intent,
clarence hath not another day to live:
which done, god take king edward to his mercy,
and leave the world for me to bustle in!
for then i'll marry warwick's youngest daughter.
what though i kill'd her husband and her father?
the readiest way to make the wench amends
is to become her husband and her father:
the which will i; not all so much for love
as for another secret close intent,
by marrying her which i must reach unto.

(exit)

a.
the development of the character of lord hastings in the play
b.
the characterization of richard iii as a concerned brother
c.
the use of soliloquy as a tool of foreshadowing in the play
d.
the portrayal of marriage in the play