Answer:
He will use Roderigo and Cassio to make Otheelo Jealous.
Explanation:
When Iago tells Rodrigo to set up Desdemona and Cassio to make it look like they are havig an affair, Othello starts to suspect something is going on causing Othello to get Jealous. Jealosy is Othello's fatal flaw which inevitebly leads to his and Desdemona's demise.
