Answer: The problems with the self-report data
Step-by-step explanation:
According to the given question, Carl is asked for providing the data or information about drinking and he reported that he has no issue with the drinking then it illustrate the example of self-report data problem.
The self report data is one of the technique or method that helps in gathering the information about our self about t]any issue.
In the self report data, we can easily test the individual own behavior, attitude and the beliefs and we can use any types of technique for gathering the data or information.
Therefore, The problems with the self-report data is the correct answer.