The title is misleading as the companions refers to the fellowship of nine. It should be Aragorn, Galadriel and Merry. Also, could you accept Smeagol for Gollum?
Aragorn, Galadriel and Merry are the correct spellings. "Companions" also implies the nine members of the Fellowship. Technically Galadriel was never one of his companions but a friend along the way. If there was a second Elf who was his companion it would have been Glorfindel in the Flight to the Ford, or perhaps Gildor who assisted them when they first saw the Black Riders.
*Merry
Good quiz, but you need to fix the spelling errors.