What is the minimum legal age to be a designated driver in the scenario provided?

• A. 18
• B. 21
• C. 25
• D. 30

Answer: (B)

The main idea here is understanding who can legally take on the role of a designated driver. A designated driver is the person in the group who stays sober so they can drive everyone home safely. In many safety contexts, the minimum age used for this role aligns with the legal drinking age, which in many places is 21. That makes 21 the smallest age at which someone is considered an adult in the drinking-age framework and thus eligible to be trusted to handle the responsibility of driving a group home after a night out. Ages younger than that aren’t considered the standard minimum in this context, and higher ages aren’t needed unless the policy explicitly raises the threshold.