Review Question - QID 109184

A 61-year-old female presents to her primary care physician complaining of fatigue and feeling sad. She reports that ever since her husband passed away 3 months ago, she has noticed a decrease in her energy level and reports frequently awaking at 2 in the morning and cannot fall back asleep. She sometimes wakes up and hears her husband's voice, constantly thinks about how much she misses him, and has recently thought about ways to kill herself including driving through a red light. She used to be an active member of her neighborhood’s bridge club but has stopped playing. She has lost 15 pounds and rarely feels hungry. Which of the following is the most likely diagnosis in this patient?