I do not understand the question but I believe the answer is A.
Parents tend to sing to their infants in a way that helps the infants learn from music by using a high pitch, a slow tempo, and expressive singing quality. This is known as infant-directed singing.
<h3>What is infant-directed singing?</h3>
Infant-directed singing are songs sung to a baby or small child directly. This can be done to get the baby attention and also to hear and learn from the song.
Therefore,
Parents tend to sing to their infants in a way that helps the infants learn from music by using a high pitch, a slow tempo, and expressive singing quality. This is known as infant-directed singing.
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The most notable difference is that Naturalism focussed on creating realistic interpretations of reality with subtle, soft rendering as impressionistic paintings focussed on capturing a slightly more abstract interpretation of reality based on 'feeling' and artistic portrayal, often featuring visible brush strokes which was a controversial technique at the time of the movement.