What mood is created by the meiosis in "Do not muse at me, my most worthy friends; / I have a strange infirmity, which is nothing / To those that know me”?

a. concerned
b. despairing
c. curious
d. scolding

Macbeth. Blood hath been shed ere now, i’ the olden time,
Ere human statute purg’d the gentle weal;
Ay, and since too, murders have been perform’d
Too terrible for the ear: the times have been,
That, when the brains were out, the man would die,
And there an end; but now they rise again,
With twenty mortal murders on their crowns,
And push us from our stools: this is more strange
Than such a murder is.

Lady Macbeth. My worthy lord,
Your noble friends do lack you.

Macbeth. I do forget.
[To Lords.] Do not muse at me, my most worthy friends;
I have a strange infirmity, which is nothing
To those that know me. Come, love and health to all;
Then, I’ll sit down.