A 50- year- old woman presents to the local hospital complaint of "a drug problem". She says that for the past 3 years her use of cocaine has been controllable, to the point that she has lost her housing and her job. She reports using increasing amounts of cocaine over the past year to "reach the same high". When she stops using cocaine, she experiences intense symptoms of anxiety, depression, fatigue, and nausea. She has tried multiple times to quit using cocaine altogether, but her efforts have been unsuccessful. She suffered a transient stroke once during a cocaine binge. She denies any mood problems or hallucinations prior to using substances. What is the likely diagnosis?

A. Bipolar I disorder.
B. Cocaine intoxication, without perceptual disturbances.
C. Cocaine withdrawal.
D. Moderate cocaine use disorder.