Passage Summary: Very young babies who are mostly cared for by their moms will stop crying for a moment if they hear her voice, but they don't care if a stranger talks to them.

Reasoning: Newborns aged four to six weeks can be calmed by their mother's voice specifically, whereas other voices do not produce the same effect.

Analysis: Since this is a 'Most Strongly Supported' question, we are looking for a logical inference based on the provided facts. The stimulus shows a clear distinction in how a newborn reacts to a specific stimulus—the mother's voice—versus all other auditory stimuli. It seems these tiny humans are already quite the discerning critics, capable of auditory discrimination before they can even hold their own heads up. Look for an answer that suggests these newborns can distinguish their mother's voice from the voices of other people.