The middle stage of addictive-dependent behavior is characterized by:

A. no regular use This fits more with the early or experimental stage, not middle. B. exceed moderate levels; notice a tolerance effect The middle stage is defined by increased consumption, developing tolerance, and the beginning of physical or psychosocial impacts. C. occasional social use Again, this is more consistent with the early stage of substance use. D. continuous use; unable to function without the substance This describes the late stage, where the person is likely physically dependent and showing serious impairment.