Which of the following is an early warning of alcoholism?

The identification of early warnings of alcoholism is crucial for recognizing and addressing potential alcohol use disorders. Increased tolerance to alcohol indicates that a person's body is becoming accustomed to its effects, often leading them to consume more to achieve the same level of intoxication, which is a significant red flag.

Blackouts or memory lapses suggest that a person is consuming alcohol in a way that affects their cognitive functioning and memory retention; this can indicate a developing dependency on alcohol.

Changes in social habits can also serve as a warning sign; for instance, someone may start to isolate themselves or prioritize drinking over other activities or relationships.

Each of these signs can signal a growing problem with alcohol, and collectively they highlight a spectrum of behaviors that can indicate the early stages of alcoholism. Recognizing any one of these signs is important, but acknowledging that they can all occur together underscores the complexity of alcohol use issues. Hence, the option that encompasses all these indicators is appropriate for understanding the early signs of alcoholism.