Arrange the following animals in ascending order based on their life span:
Crow, Horse, Parrot, Elephant
Horse, Parrot, Crow, Elephant
Crow, Parrot, Horse, Elephant
Crow, Parrot, Elephant, Horse
Crow, Horse, Elephant, Parrot
Among the given animals, the crow has the shortest life span, followed by the horse, elephant, and parrot. Therefore, the correct order, from shortest to longest life span, is Crow, Horse, Elephant, Parrot. Option 4, "Crow, Horse, Elephant, Parrot," accurately represents this arrangement.