Final answer:
Desdemona first hears the 'song of Willow' from Emilia in 'Othello'.
Step-by-step explanation:
The answer to the question is a. Emilia. Desdemona first hears the 'song of Willow' from Emilia. In Act IV, scene iii of William Shakespeare's play 'Othello,' Desdemona asks Emilia to sing the 'song of Willow,' which is about a woman who is abandoned by her lover. Emilia sings the song, but Desdemona is unable to finish listening to it because she is overcome with emotion. So, the correct answer is a. Emilia.