According to a longitudinal study by John Schulenberg and his colleagues, by the time individuals reach their late twenties, ________ the use of alcohol and drugs.
A) many would have reduced
B) most of them would have increased
C) almost all would have ceased
D) most of them would have been addicted to

Question

Quizplus · Accepted Answer

The question asks about the use of alcohol and drugs by individuals in their late twenties. The wordings "by the time" indicates a certain period of time has passed, and in this case, it suggests that the individuals have had some time to mature and potentially rethink their choices. The wordings "reached their late twenties" implies that they are no longer teenagers, and they have gone through some critical life events, such as entering the workforce or starting a family. Based on the above factors, it is reasonable to expect that many individuals may have reduced their use of alcohol and drugs over time. While we cannot rule out that some individuals may have increased their use or become addicted, the answer "many would have reduced" is the best choice based on the information given.

According to a Longitudinal Study by John Schulenberg and His