Explanation:
Othello cares about Desdemona’s handkerchief in Shakespeare’s play “Othello” because it is a significant symbol of their love and fidelity. It was a gift from Othello to Desdemona, and she treasured it as a token of their relationship. When Othello sees Cassio with the handkerchief, he becomes convinced that Desdemona is unfaithful, and this sets in motion the tragic events that lead to their deaths.