[Solved] We calculate the three-period moving averages for a time series for all time periods except the: A)first period B)last period C)first and last period D)first and last two periods Depression: An ongoing mental state of depression or a decline in interest in activities, causing significant disruptions in day-to-day living. Aversion Therapy: A form of psychological treatment where the patient is exposed to a stimulus while simultaneously being subjected to some form of discomfort, aimed at reducing unwanted or harmful behaviors. Electric Shocks: A sudden discharge of electricity through a part of the body, used in some experimental settings to study pain, learning, and behavior. Sexual Attraction: The feeling of being attracted to someone in a way that is erotic or sexual in nature.