Final answer:
The reduction in alcohol-related driving fatalities since the 1980s is primarily due to stricter law enforcement and penalties.
The answer is option ⇒c
Step-by-step explanation:
In 1984, the National Minimum Drinking Age Act was passed, which required states to raise their drinking age to 21 or face a reduction in federal highway funds. This law, advocated for by Mothers Against Dr`unk Driving (MADD), played a significant role in reducing alcohol-related fatalities by discouraging underage drinking and enforcing stricter penalties for driving under the influence.
Increased speed limits, widespread use of designated drivers, and public transportation improvements may have contributed to overall road safety, but they are not the main factors responsible for the reduction in alcohol-related driving fatalities.
The answer is option ⇒c