If someone registers a BAC of 0.10, how will this impact a driver who is over 21?

Answer: B — It will lead to a suspension

A blood alcohol concentration (BAC) of 0.10 for a driver who is over 21 carries significant legal implications. In Massachusetts, as well as in many other states, the legal limit for driving is 0.08. Therefore, registering a BAC of 0.10 signifies that the driver is above this legal limit, indicating impairment. When a driver registers at this level, they can face serious consequences, including license suspension. This is part of the state's efforts to enforce laws aimed at reducing drunk driving and ensuring public safety. The suspension is a direct consequence of violating DUI laws and is intended to deter such behavior in the future. Consequently, while fines may accompany certain infractions, the immediate impact of a BAC of 0.10 is to trigger disciplinary actions such as a suspension, reflecting the seriousness with which impaired driving is treated in Massachusetts.