Which sentence uses commas correctly?
a. at each stop, in the treasure hunt we found an envelope with a clue.
b. at each stop in the treasure hunt, we found an envelope with a clue.
c. at each stop, in the treasure hunt, we found an envelope with a clue.
d. at each stop in the treasure hunt we found an envelope with a clue.

odysseus shows many acts of bravery in homer's epic poem the odyssey. first, he shows bravery when he tricks polyphemus, the cyclops, and gouges out his eye. this is an act of bravery. it will also cost him because polyphemus was the son of poseidon, the god of the sea.

explanation:

your answer is c) experiments with water vapor showed that elements combine in specific proportions.