Imagery because it’s giving you a visual description
To develop his opinion
convince or persuade the audience about an issue
Try to think of main ideas first.
Some ways to think of ideas are:
1- Self-interview
2- Ask classmates or family members
3- Try to think of experiences from the past or things you would like to be\do.
Hope this helps
Answer:
I haven't seen a dictionary in a while but I believe that C is right
The sirens would show themselves as beautiful mermaids, and they would sing of the sailors' greatest desires and offer them their greatest desires.