A child is defined as a passenger who is at least two years old but has not yet reached which birthday?

A child is defined as a passenger who is at least two years old but has not yet reached which birthday?

• A. Fifth
• B. Eighteenth
• C. Tenth
• D. Thirteenth

Answer: (D)

The main idea here is the age categories used for passenger classifications. A child is defined as someone who is at least two years old but has not yet reached their 13th birthday. That means the eligible ages are 2 through 12. So the upper limit is the 13th birthday—once a passenger turns 13, they no longer fit the “child” category. The other birthdays listed don’t fit this range: two cannot be the upper bound, five is well below the limit, ten is within the range but not the upper cutoff, and eighteen is beyond the upper limit.

The main idea here is the age categories used for passenger classifications. A child is defined as someone who is at least two years old but has not yet reached their 13th birthday. That means the eligible ages are 2 through 12. So the upper limit is the 13th birthday—once a passenger turns 13, they no longer fit the “child” category. The other birthdays listed don’t fit this range: two cannot be the upper bound, five is well below the limit, ten is within the range but not the upper cutoff, and eighteen is beyond the upper limit.