What distinguishes physical dependence from addiction to alcohol?

The correct choice highlights that physical dependence on alcohol refers to the body's adaptation to the presence of the substance, which results in reliance characterized by withdrawal symptoms when alcohol is not consumed. This physical reliance means that the body has become accustomed to functioning with alcohol, creating a physiological need.

In contrast, addiction encompasses not just the physical dependence but also significant psychological aspects. Addiction can result in compulsive behaviors such as cravings and an inability to control drinking despite knowing the negative consequences. This comprehensive understanding of addiction includes both the physical and the psychological elements, leading to a more complex and challenging relationship with alcohol.

The other options fail to capture these nuances. For instance, stating that dependence does not affect daily life overlooks the impact of withdrawal and the ways individuals may adjust their lives around the substance to avoid negative consequences associated with withdrawal. Describing dependence as merely psychological inaccurately separates it from the physical components that are vital to understanding how alcohol affects the body. Lastly, the idea that there is no difference between dependence and addiction overlooks the complex interplay of both physical and psychological factors that contribute to addiction.