What element of greek tragedy does ismene articulate in the following lines from antigone?

'tis foolishness, i ween,
to overstep in aught the golden mean.

a.
anagnorisis
b.
hubris
c.
peripeteia
d.
catastrophe

B.  Hubris

Explanation:

"Antigone" is a tragedy by Sophocles written in or before 441 BCE.

In the Prologue of the play, Antigone decides to bury his killed brother despite Creon's law forbidding it. Ismene (her sister) tries to stop Antigone from doing this. She says these lines. "It is foolish (to bury the brother), I opine, It is overstepping the law."

These lines show Ismene’s excessive pride she takes in her understanding of the situation in contrast to Antigone, who according to Ismene is foolish. Hubris is excessive pride or self-confidence of a character. It is one of the tragic/fatal flaws in many tragedies. So, Ismene is articulating hubris (excessive pride) in these lines.

Anagnorsis is an element of Greek tragedy in which a character gets a useful insight to his/her position/situation, when he/she comes to know his/her limitations or strong points.  

Peripeteia is sudden reversal of fortune or change in circumstances of a character. It usually occurs at the end of a tragedy.

Catastrophe is the final resolution of all conflicts of the tragedy. It is synonymous with denouement which brings an end to play/story.

d) the narrator even suggested that the white whale, moby d, was ubiquitous and present in every ocean at every moment.  

what lesson are you referencing?