What does this excerpt from act i of macbeth say about lady macbeth?

lady macbeth:
the raven himself is hoarse
that croaks the fatal entrance of duncan
under my battlements. come, you spirits
that tend on mortal thoughts, unsex me here;
and fill me, from the crown to the toe, top-full
of direst cruelty! make thick my blood,
stop up the access and passage to remorse,
that no compunctious visitings of nature
shake my fell purpose, nor keep peace between
the effect and it!

a she seeks supernatural to shed her pity and persuade macbeth to kill duncan.
b she regrets being involved in duncan’s murder because he resembles her father.
c she believes that macbeth will ask her to kill duncan herself.
d she believes that she lacks the skill to persuade macbeth to kill duncan.