Emmy Responds More Positively to Her Mother Than to Other

Emmy responds more positively to her mother than to other people. She smiles and laughs more often in her mother's presence than in the presence of other people. She does not exhibit separation distress, nor does she actively seek out her mother. Bowlby would consider Emmy to be in which phase of the development of attachment?

A) attachment-in-the-making
B) reciprocal relationships
C) preattachment
D) clear-cut attachment