Which statement should be revised for a more formal tone?
poseidon, god of the sea, and athena, goddess of war, fought for the city of athens. poseidon threw his spear, which
produced the spring of acropolis.
amaltheia was kind of like a goat who fed zeus, which zeus was really happy about. in fact, he turned the goat's horn into the
horn of plenty.
chronos was the ancient greek symbol of time. his appearance, a wise old man with a long beard, is similar to a current
symbol, father time.
sisyphus the gods by disclosing secrets. he found himself forced to roll a heavy stone uphill, only to see it roll
back once it reached the peak.

The statement that should be revised for a more formal tone is C. Amaltheia was kind of like a goat who fed Zeus, which Zeus was really happy about. In  fact, he turned the goat's horn into the  horn of plenty.

Explanation:

Sentence C is the statement that should be revised for a more formal tone mainly because of the use of the phrase "kind of" and the non-defining clause "which Zeus was really happy about".

The phrase "kind of" is used to talk in a general way without being exact, so one could change it for some other phrase like to some extent or in a figurative way to improve the register.

The structure of the non-defining clause can be retained, but, in order to make it more formal, one may use some other verb like delight or thrill.

pulling in the reader is important

i wish you all a merry christmas!  

and or happy hanukkah

and a happy new year