Alice Takes Her 1-Year-Old Son, Derek, to Visit an Infant-Toddler

Alice takes her 1-year-old son, Derek, to visit an infant-toddler program in which she hopes to enroll him. Derek eagerly explores the room as long as Alice is present. When Alice leaves the room to fill out some forms, Derek becomes somewhat upset. When she returns, though, Derek quickly calms down. Which term best describes Derek's attachment style

A) Disorganized
B) Ambivalent
C) Secure
D) Avoidant