Recently, Madeleine Has Lost Interest in Shopping, Which Used to Be

Recently, Madeleine has lost interest in shopping, which used to be one of her favourite activities. She has changed from being a very happy-go-lucky teen to being very quiet and serious. She has given her favourite CDs to her best friend. Madeleine

A) appears to be making a normal transition from childhood to adolescence.
B) is showing signs that she may be considering suicide.
C) has probably been drinking alcohol frequently.
D) may have fallen in love for the first time.