Stephanie was the last person to hand in the essay on the advantages and disadvantages of social networks.

A. Among the last people who submitted the essay on the advantages and disadvantages of social networks was Stephanie.

B. Everyone had submitted the essay on the advantages and disadvantages of social networks before Stephanie did.

C. The last thing Stephanie handed in was her essay on the advantages and disadvantages of social networks.

D. Everyone had heard about the essay on the advantages and disadvantages of social networks before Stephanie did.