When Placed in the Strange Situation Test, Erica Is Distressed

When placed in the strange situation test, Erica is distressed when her mother leaves the room, and happily greats her when she returns. When mom is around she explores the playroom and does not seem distressed when a stranger enters. Erica would most likely be classified as

A) resistant-avoidant.
B) anxious-avoidant.
C) anxious-resistant.
D) securely attached.
E) cannot classify.