Three-week-old baby Alex smiles mostly during sleep and not in response to his mother's kind expressions. These smiles are
A) protested.
B) faked smiles.
C) social.
D) reflexive.

Question

Quizplus · Accepted Answer

The smiles that occur during sleep at three weeks of age are reflexive smiles, which means they are not intentional or in response to any external stimuli such as kind expressions from the mother.

Three-Week-Old Baby Alex Smiles Mostly During Sleep and Not in Response