Hi there!
In the Odyssey, Melantho is a foil to Eurynome and Eurykleia.
Melantho, the sibling of Melanthios, is a palace servant who is loyal to the suitors rather than the Queen. In order to die in the most humiliating way, she is hanged.
In literature, a foil character is a character that is opposite to the main character in personality, physical appearance, or both.
Try to underline the particular word so that it would be much easier
It should be the first choice.