Final answer:
The subject of the question is Law, and it pertains to a person who has a total of 4 DWI convictions in 7 years.
Step-by-step explanation:
The question is focused on the number of times a person has been convicted of Driving While Intoxicated (DWI). When it is stated that a person has been convicted of DWI for the 4th time in 7 years, this indicates that the total number of DWI convictions for this individual is four.
Legally, alcohol intoxication is often defined as a blood alcohol concentration (BAC) of greater than 5.4-17.4 mmol/L (25-80 mg/dL or 0.025-0.080%). The rate at which alcohol is broken down in the human body is about 3.3 mmol/L (15 mg/dL) per hour. These details, although related to the process of determining intoxication levels, are separate from the fact of the number of convictions.