Final answer:
The metaphor in the given sentence is option B, "six white arrows," which describes the animals' tails as arrows, indicating speed and direction.
Step-by-step explanation:
Identification of the Metaphor
The metaphor in the sentence "Then they dart, away their tails held high, six white arrows point at the sky" is found in option B) "six white arrows". This metaphor compares the tails of the animals to white arrows, suggesting that they are straight, pointed, and perhaps moving swiftly upward or being held in a way that resembles the position of arrows ready to be shot into the sky. Metaphors are a figure of speech that describe an object or action in a way that isn't literally true, but helps explain an idea or make a comparison. The tails are not literally arrows, but the comparison conjures an image of the animals moving quickly with their tails positioned in a distinctive and noticeable manner reminiscent of arrows.