Answer: Rodrigo is being used by Iago to incite Othello 's jealousy. He tells Othello that Desdemona has given a handkerchief to Rodrigo that Othello had given to her as a wedding present. Iago gives the handkerchief to Rodrigo’s wife and it gets to Rodrigo, so it looks like Desdemona indeed.
Explanation:
The last one is the answer
