What incident ignited the excerpt below?

Use the excerpt below to answer question

“Now, by yond marble
heaven,
In the due reverence of a sacred vow
I here enrage my words.” (Shakespeare’s Othello)

A. the taking of a vow of revenge
B. Othello’s rage about Desdemona’s betrayal
C. Lago’s conspiracy with Brabantio to kill Othello
D. Desdemona and Emilia’s discussion on the lost handkerchief

Correct Answer: Option B

Explanation

Lago played upon Othello’s insecurities, reminding him of Cassio’s outstanding qualities, this accumulated to vexing Othello and luring him into thinking of Desdemona’s betrayal.