Experts on Infant Socioemotional Development, Such as Jerome Kagan, Conclude

Experts on infant socioemotional development, such as Jerome Kagan, conclude that ________ makes it unlikely that emotions which require thought can be experienced in the first year.

A) the lack of innate emotions in the infant brain
B) the structural immaturity of the infant brain
C) incomplete myelination in the first two months
D) the lack of reciprocity of emotional expressions