Read the sentence. It is missing punctuation. The baby elephant walking slowly followed his mother toward the shady trees.

What version of the sentence uses punctuation correctly?

The baby elephant, walking slowly followed his mother toward the shady trees.

The baby elephant, walking slowly, followed his mother toward the shady trees.

The baby elephant walking, slowly followed his mother, toward the shady trees.

The baby elephant walking slowly, followed his mother toward the shady trees.