You are a clinical psychologist. You see a new patient, Sarah, for an initial assessment. Sarah is a 46 year old Caucasian female who is a stay-at-home mother with 3 children. Sarah has lost interest in previously enjoyable activities, sleeps during the day when her children are at school, and has had thoughts of hurting herself. She feels as though her life is worthless and she feels hopeless. Sara has been feeling this way for a little over a month. Which therapeutic approach would you use with this patient and why?