What type of passenger does not qualify for any discount?

The correct answer is that adult travelers without disabilities do not qualify for any discount. This is because Amtrak typically offers various discounts to specific groups of passengers, such as seniors, children, and travelers with disabilities.

Seniors over 65 are eligible for discounts as part of special pricing initiatives aimed at older adults. Children under 2 generally ride for free when sitting on an adult's lap and can often receive discounted tickets if they have their own seat. Frequent travelers also have the potential to benefit from loyalty programs or discounts based on the number of rides they accumulate.

Adult travelers without disabilities do not fall into any of these categories and typically pay the full fare for their tickets, making them ineligible for any of the available discounts offered by Amtrak.