Answer:
d. They represent the twins that the woman will bear.
Explanation:
The creation myth "The World On Turtle's Back" is an Iroquois belief of how man came into being. This legendary myth details how the earth came to be formed and man came to be created.
Based from the excerpt given in the question, the narrator states how the two brothers were born. By the "two arrows" yielded by the man, the girl who fainted would give birth to two very different twins. The presence of the two arrows "in opposite directions" next to her body signifies the symbol of the brothers' births, which at the same time, also shows their differences in personality.