This answer is unsupported. We only know that rotating limbs with fingers are common to most land animals. To say that there are “many” characteristics in common with most land animals is too strong.

This answer is unsupported. We don’t know anything from the stimulus about the physical characteristics of most aquatic animals. We only know that the Acanthostega had rotating limbs with fingers.

This answer is unsupported. We don’t know where the Acanthostega species originated from the stimulus.

This answer is unsupported. We don’t know from the stimulus if there are characteristics common to most land animals that are useful for surviving underwater. We only know that most land animals have at least one feature that is useful for land movement.

This answer is strongly supported. We know from the stimulus that the Acanthostega had rotating limbs with fingers, a characteristic useful for land movement, even though this species was exclusively aquatic.