Final answer:
Paris, a mortal, was chosen to judge the contest of beauty among the goddesses Hera, Athena, and Aphrodite, who promised him power, martial success, and the most beautiful woman, respectively. Aphrodite won the judgment by promising Helen's love to Paris.
Step-by-step explanation:
The goddesses in the mythological contest to see who was the fairest wanted Paris, a mortal man, to judge their beauty.
This event is depicted in the tale of the Judgement of Paris, a pivotal story in Greek mythology that ultimately led to the Trojan War. Paris chose Aphrodite (Venus to the Romans) over Hera (Juno) and Athena (Minerva) after each goddess attempted to bribe him with offers of power, warfare success, and the love of the most beautiful woman on Earth, respectively.
Aphrodite's promise of Helen, the most beautiful mortal woman, swayed Paris to award her the golden apple, signifying her as the fairest.