What does the contest between Athena and Poseidon consist of?

Question 3 options:

Athena and Poseidon will race to the top of the hill


Athena and Poseidon will show off their strength in a tug-of-war match


Athena and Poseidon will offer a gift to the people of the city. Whoever offers the best gift wins.


Athena and Poseidon will have a swimming match to the furthest island and back